Dessert Recipes

Czech Filled Donuts Koblihy

About 15 donuts

Dive into making Czech Filled Donuts Koblihy, a popular Czech pastry enjoyed year-round. Known for their soft, pillowy dough, these treats are typically filled with fruit preserves, though variations with vanilla or chocolate pastry cream are also enjoyed. Unlike treats reserved for special occasions, these delightful filled donuts are a joy to make and eat anytime. Read More

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Published: 12.30.2025
Dessert Recipes
30 min.
3 h.
3/5
389 calories Per Serving (of 15) Read More

Before You Start

Let’s talk about important parts of the recipe before you start…

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Welcome to My Czech Filled Donuts Koblihy Recipe

I am Tom the Chef, and I am thrilled to share my recipe for Czech Filled Donuts Koblihy. As the founder of Tom the Chef, I love sharing recipes that bring people together, and this popular Czech pastry does just that. These donuts are known for their soft, pillowy dough that practically melts in your mouth. Whether you choose to fill them with a preserve or jelly of your choice, or perhaps a rich pastry cream, the result is always delicious. I have designed this recipe to be approachable, guiding you through the process of making the dough, deep frying, and filling these treats so you can enjoy fresh, homemade donuts right from your kitchen.

Czech Filled Donuts Koblihy - Shaping

Preparing the Yeast Dough Base

To start my Czech Filled Donuts Koblihy, the foundation is a rich yeast dough. I begin by placing 4 cups of bread flour, ½ cup of granulated sugar, 1 TBSP of active dry yeasts, and a pinch of salt into a kitchen mixer with a hook attachment. It is important to briefly stir with a whisk just enough to combine all ingredients before adding the wet components. I then add 1 cup of lukewarm milk (about 90 to 100°F), 1 stick of melted butter, and 3 eggs. The temperature of the lukewarm milk is crucial; I recommend preheating it in the microwave or on the stove to ensure the active dry yeasts activate properly without being killed by heat. This combination creates the soft, pillowy dough that makes these donuts so special.

Czech Filled Donuts Koblihy - Dough

Kneading for the Perfect Texture

Once the ingredients are in the mixer, I knead on low speed until all ingredients are partially incorporated, which takes about 1 to 2 minutes. Then, I increase the speed to medium-high and knead until a sticky dough is formed. This usually takes about 3 to 4 minutes. Achieving the right consistency is key for this popular Czech pastry. The dough should come together but remain slightly sticky, which ensures the final product is light and airy. If you find the dough is generally too sticky during the shaping phase later, I suggest incorporating some extra flour into the dough using the mixer or your hands.

Czech Filled Donuts Koblihy - Dough

Rising and Shaping the Donuts

After kneading, I remove the bowl from the mixer and cover it with a plate or plastic wrap. I let it rise in a warm place until it has at least doubled in size, which takes about 2 to 3 hours. When ready to shape, I work on a lightly floured surface. I flatten the dough to about ½” thickness using a rolling pin. If the dough sticks to the rolling pin, I consider gently flouring the top. I then cut each donut using a 3” round cookie cutter. A distinctive feature of Czech Filled Donuts Koblihy is that they do not have a donut hole. I place them on a lightly floured baking sheet and repeat with the remaining dough, reforming scraps to minimize waste.

Czech Filled Donuts Koblihy - Shaping

Proofing and Deep Frying Safety

I let the donuts proof in a warm place for about 30 minutes or at room temperature for about 45 minutes before deep frying. While they proof, I set my oil to preheat to 320°F. I cannot stress enough how important it is to carefully monitor the oil temperature. If the oil reaches a higher temperature, usually over 400°F, it becomes flammable. I fry donuts in batches based on the size of the deep fryer or pot. I place each donut carefully into the preheated hot oil by hand, or use a slotted turner if that is too complicated. I fry until a nice color is reached, about 2 to 3 minutes per side. This process ensures the sweet bread cooks through while moisture is trapped inside.

Czech Filled Donuts Koblihy - Proofing and Oil Preheating

Filling with the Bismarck Pastry Tip

The filling step is where these donuts truly become Czech Filled Donuts Koblihy. While the donuts are proofing, I prepare the filling, which can be 1 ½ cups of preserve or jelly of your choice, or Vanilla or Chocolate Pastry Cream. I fill a pastry bag fitted with a Bismarck tip, which is a long tip designed for filling. It is important to fill the donuts while they are still warm. I insert the pastry tip into the side of the donut, aiming for approximately the middle, and then pipe in a portion of the filling. This technique ensures every bite of the soft, pillowy dough contains a burst of delicious flavor.

Chocolate Pastry Cream for Filling Pastry - Fill your Pastry with Vanilla Pastry Cream for Filling Pastry

Optional Glazing for Extra Sweetness

For an extra touch, I sometimes prepare an optional glaze using 2 cups of confectioners’ sugar, 3 to 5 TBSP of water, and 2 TBSP of vanilla extract. I thoroughly stir these together with a whisk. If I want a thick glaze, I use 3 to 4 TBSP of water; for a fine glaze, I use 4 to 5 TBSP. I dip each warm donut into the glaze, let it sit for a few seconds, and then slowly take it out to let the excess drip off. I place them on a baking sheet to let the glaze harden at room temperature for about 10 to 15 minutes. This adds a lovely finish to the delicious filled donuts.

Czech Filled Donuts Koblihy

About 15 donutsPublished: 12.30.2025 ☆☆☆☆☆0x(write a review)👁321x
30 min.
3 h.
3/5
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Ingredients:

Click any ingredient to learn more
Dough:
4 cups of bread flour
1 Pinch of salt
1 cup of lukewarm milk (about 90 to 100°F) (about 90 to 100°F (preheat in the microwave or on the stove))
1 stick of butter - melted (¼ LB *)
3 PCS of eggs
Filling:
1 ½ cups of preserve or jelly of your choice (adjust if needed)
1 ½ cup of Vanilla Pastry Cream for Filling Pastry (store-bought or recipe here)
1 ½ cup of Chocolate Pastry Cream for Filling Pastry (store-bought or recipe here)
Optional Glaze:
3 - 5 TBSP of water (adjust if needed, 3 - 4 TBSP for thick glaze or 4 – 5 for fine glaze)
2 TBSP of vanilla extract
Optionally: gel food coloring of your choice ((follow the package’s instructions))

* Cut butter into small pieces before melting and place into a measuring pitcher (or small microwavable mixing bowl). Then, microwave briefly with a few seconds break between – to prevent little “explosions.” Optionally, melt the butter over low heat with occasional whisking.

Nutrition per 1 Serving:(recipe split into 15 servings)

Estimated
Calories 389 Protein 6.2 g Fat 8.2 g Saturated fat 4.6 g Carbohydrate 72.8 g Sugars 44.1 g Fiber 1.2 g Sodium 88 mg Cholesterol 55 mg
Estimated. Worked out from the ingredients above using the United States Department of Agriculture’s FoodData Central reference data. An estimate, not a measurement — brands, sizes and how much of a marinade actually ends up on the plate all move it.
Directions:
Koblihy Donuts Common Steps-02
Flour, eggs, milk, cream, butter, sugar, and salt gathered for making Czech Donuts Koblihy.

1.Dough:

Let’s start preparing the Czech filled donuts Koblihy with the dough preparation.

1.1.
Place into a kitchen mixer with a hook attachment:
4 cups of bread flour
½ cup of granulated sugar
1 TBSP of active dry yeasts
Pinch of salt

Briefly stir with a whisk just enough to combine all ingredients (about 1 minute).

Koblihy Donuts Common Steps-04
1.2.
Add:
1 cup of lukewarm milk
1 stick of butter – melted
3 eggs

Knead on low speed until all ingredients are partially incorporated (about 1 – 2 minutes).

Koblihy Donuts Common Steps-01
1.3.

Then increase the speed to medium-high and knead until a sticky dough is formed (about 3 – 4 minutes).

Koblihy Donuts Common Steps-13
Koblihy Donuts Common Steps-14

2.Raising the Dough:

2.1.

Remove the bowl from the mixer and cover with plate or plastic wrap.

2.2.

Let it rise in a warm place until it has at least doubled in size (about 2 – 3 hours).

Koblihy Donuts Common Steps-15

3.Shaping:

Note:
Work on a lightly floured surface
3.1.
Place the dough on a floured surface and, using a rolling pin, flatten the dough to about ½” thickness.

Tips:

  • If the dough sticks to the rolling pin, consider gently flouring the top.
  • If the dough is generally to sticky, consider incorporating some flour into the dough. You can do it by using a kitchen mixer or your hands.
Koblihy Donuts Common Steps-16
Koblihy Donuts Common Steps-17
Koblihy Donuts Common Steps-19
Koblihy Donuts Common Steps-18
3.2.
Cut each donut and donut hole by using a 3” cookie cutter.

Note: Czech filled donuts, koblihy, do not have a donut hole.

Koblihy Donuts Common Steps-20
Koblihy Donuts Common Steps-21
3.3.

Place it on a lightly floured baking sheet and repeat with the remaining dough.

Koblihy Czech Donuts Steps Only-01
3.4.
Form the leftover dough together with your hands and roll it again with a rolling pin. Then, cut more donuts.

Tip:

To make the process easier, you can simply fry the scraps instead (the shape will be off, but they will still taste delicious). Alternatively, you can reform the dough and then cut non-traditional Czech long johns to make the process with reformed dough easier.

Koblihy Donuts Common Steps-22
Koblihy Donuts Common Steps-23
Koblihy Donuts Common Steps-24
Koblihy Donuts Common Steps-25

4.Proofing and Oil Preheating:

4.1.
Let the donuts proof in a warm place for about 30 minutes or at room temperature for about 45 minutes.
Note:
You are not looking for any specific volume increase; you just want to give the dough an opportunity to recover.
4.2.
Set your oil to preheat to 320°F.
Important:
Carefully monitor the oil temperature. If the oil reaches a higher temperature (usually over 400°F), it becomes flammable.
Koblihy Donuts Common Steps-29

5.Filling Preparation:

5.1.

While the donuts are proofing, prepare the filling.

5.2.
Fill a pastry bag fitted with a Bismarck tip with the preserve or jelly, or prepare the pastry cream and fill a pastry bag, so they are ready to fill the donuts soon after frying.
Recipe for Vanilla Pastry Cream for Filling Pastry here
Recipe for Chocolate Pastry Cream for Filling Pastry here.

6.Fry:

Note:
Fry donuts in batches based on the size of your deep fryer (or pot).
6.1.
Place each donut carefully into the preheated hot oil by hand.
Tip:
If you find this task too complicated, you can optionally use a slotted turner to place the donuts in.
Koblihy Czech Donuts Steps Only-02
Koblihy Czech Donuts Steps Only-03
6.2.

Fry until a nice color is reached (about 2 – 3 minutes).

6.3.

Turn and fry until the second side reaches a nice color (another 1 – 3 minutes).

Koblihy Czech Donuts Steps Only-04
Koblihy Czech Donuts Steps Only-05
6.4.

Carefully remove from the hot oil and transfer to the cooling rack or paper towel to let the oil drain off.

Koblihy Czech Donuts Steps Only-06
6.5.

Repeat with the remaining donuts.

7.Optionally Prepare Glaze:

7.1.
Place all ingredients into a medium mixing bowl:
2 cups of confectioners’ sugar
3 – 5 TBSP of water
2 TSBP of vanilla extract
Optional: food coloring (follow the package’s instructions)

Thoroughly stir together with a whisk until fully incorporated (about 30 seconds).

Tip:
Work one by one, and after finishing the first one, try to determine if the glaze thickness meets your expectations. If you then find out that you would prefer a thicker glaze, simply stir in some confectioners’ sugar. If you then find out that you would like a thinner glaze, simply stir in some water.
Koblihy Donuts Common Steps-27
Koblihy Donuts Common Steps-28

8.Fill and Optionally Glaze Czech Filled Donuts Koblihy:

Important:
Continue with the following steps once all the doughnuts are cool enough to touch. The donuts need to be glazed and filled while still warm – work quickly.
8.1.

Fill Donuts:

8.1.1.

Insert the pastry tip into the side of the donut, aiming for approximately the middle, and then pipe in a portion of the filling.

Koblihy Czech Donuts Steps Only-07
8.1.2.

Repeat with the remaining donuts.

8.2.

Optional Glazing:

8.2.1.

Take each and place it into the glaze.

Koblihy Czech Donuts Steps Only-08
Koblihy Czech Donuts Steps Only-10
8.2.2.

Let it sit in the glaze for a few seconds.

8.2.3.

Slowly take it out and let part of the glaze drip for a few seconds before turning.

Koblihy Czech Donuts Steps Only-09
8.2.4.

Then, place it on the baking sheet or plate.

8.2.5.

For the best results, let the glaze harden at room temperature before serving (usually about 10 – 15 minutes).

Powdered sugar dusted and glazed Czech Filled Donuts Koblihy on a dark slate board.
Powdered sugar dusted and glazed Czech Filled Donuts Koblihy on a dark slate board.A single fried Czech Filled Donuts Koblihy dusted with powdered sugar on a grey plate.Two golden Czech Filled Donuts Koblihy, one glazed, dusted with powdered sugar on dark slate.A single Czech Filled Donuts Koblihy dusted with powdered sugar on a grey plate on a wooden table.A powdered-sugar-dusted Czech Donuts Koblihy on a white plate with sugar scattered around it.A single golden Czech Filled Donuts Koblihy dusted with powdered sugar on a gray plate.Glazed Czech Filled Donuts Koblihy on a dark slate board with powdered sugar scattered nearby.Close-up of a Czech Filled Donuts Koblihy dusted with powdered sugar, more donuts blurred behind it.A single Czech Filled Donuts Koblihy with a glossy top dusted in powdered sugar on a grey plate.A golden Czech Donuts Koblihy dusted with powdered sugar on a gray plate atop a wooden countertop.A whole Czech Donuts Koblihy, golden-fried and dusted with powdered sugar, resting on a gray plate.A fried Czech Filled Donuts Koblihy dusted with powdered sugar, filling visible at its seam, on a grey plate.

Popular questions

Can I use different fillings for these donuts?

Yes, you can use 1 ½ cups of preserve or jelly of your choice, or you can use Vanilla or Chocolate Pastry Cream for Filling Pastry.