Italian Custard Bomboloni

Italian Custard Bomboloni are soft, fluffy Italian doughnuts filled with rich vanilla custard and rolled in sugar.

They are light, airy, and packed with creamy filling in every bite.

If you love bakery-style treats, this homemade version is absolutely worth making.

Servings: 12 Bomboloni
Prep Time: 30 minutes
Rise Time: 2 hours
Cook Time: 20 minutes
Total Time: About 2 hours 50 minutes

Why I Love This Recipe

The first time I had Bomboloni was at a small Italian bakery. The doughnut was still warm, and the vanilla custard filling was silky smooth. One bite and I understood why people love them so much.

Now I make them at home whenever I want something special. They take a little time, but every step is simple. The smell of fresh dough frying and custard cooking makes the whole kitchen feel like an Italian café.

Here’s why I keep coming back to this recipe:

• Soft and fluffy dough.
• Rich homemade vanilla custard.
• Better than many bakery versions.
• Simple ingredients.
• Beautiful for holidays and gatherings.
• The sugar coating adds the perfect finish.
• They stay soft for hours.

Why This Recipe Works (Quick Science)

Yeast creates carbon dioxide gas, which helps the dough rise and become fluffy.

Egg yolks and cornstarch thicken the custard. As they heat, they create a smooth, creamy texture.

The butter adds richness and tenderness to both the dough and the custard.

Frying at the right temperature cooks the dough evenly while keeping the inside soft.

What You’ll Need

For the Custard

• 2 cups whole milk
• 4 large egg yolks
• ½ cup granulated sugar
• 3 tablespoons cornstarch
• 1 teaspoon vanilla extract
• 2 tablespoons unsalted butter

For the Dough

• 3½ cups all-purpose flour
• 2¼ teaspoons active dry yeast
• ¼ cup granulated sugar
• ¾ cup warm milk
• 2 large eggs
• ¼ cup unsalted butter, softened
• ½ teaspoon salt

For Frying and Finishing

• Vegetable oil for frying
• 1 cup granulated sugar for coating

Pro Tips

• Chill the custard completely before filling.
• Use a thermometer when frying for even cooking.
• Do not add too much flour or the dough can become dense.
• Fill the bomboloni generously for the best texture.
• Roll in sugar while still warm.

Tools Required

• Mixing bowls
• Whisk
• Medium saucepan
• Wooden spoon
• Stand mixer or mixing spoon
• Rolling pin
• Round cutter
• Deep pot
• Thermometer
• Slotted spoon
• Piping bag

Recipe Instructions

Step 1: Make the Custard

In a saucepan, heat 2 cups whole milk until warm but not boiling. In a bowl, whisk 4 large egg yolks, ½ cup granulated sugar, and 3 tablespoons cornstarch until smooth. Slowly whisk in the warm milk. Return everything to the saucepan and cook until thick. Stir in 1 teaspoon vanilla extract and 2 tablespoons unsalted butter. Cool completely.

Step 2: Make the Dough

In a large bowl, combine ¾ cup warm milk, 2¼ teaspoons active dry yeast, and ¼ cup granulated sugar. Let sit for 5 minutes. Add 2 large eggs, 3½ cups all-purpose flour, ¼ cup softened unsalted butter, and ½ teaspoon salt. Mix into a soft dough and knead for 8 to 10 minutes.

Step 3: Let the Dough Rise

Place the dough into a lightly greased bowl. Cover and let rise until doubled in size, about 1½ hours.

Step 4: Cut the Bomboloni

Roll the risen dough to about ½-inch thick and cut into rounds. Place the rounds on a surface and let rise for 30 minutes.

Step 5: Fry the Bomboloni

Heat vegetable oil to 350°F (175°C). Fry the dough rounds until golden brown on both sides, about 2 minutes per side.

Step 6: Coat with Sugar

Transfer the warm fried bomboloni to a plate and roll them in 1 cup granulated sugar until fully coated.

Step 7: Fill with Custard

Transfer the cooled custard to a piping bag. Fill each sugar-coated bomboloni with the chilled vanilla custard.

Macros Information

Approximate Per Bomboloni

• Calories: 290
• Carbohydrates: 39g
• Protein: 6g
• Fat: 12g
• Saturated Fat: 4g
• Sugar: 15g
• Fiber: 1g
• Sodium: 120mg

Common Mistakes

• Overheating the custard and creating lumps.
• Using milk that is too hot for the yeast.
• Adding too much flour.
• Frying at a temperature that is too low.
• Filling bomboloni before the custard is fully chilled.
• Overcrowding the frying pot.

What to Serve With

• Espresso
• Cappuccino
• Hot chocolate
• Fresh berries
• Italian coffee
• Fresh fruit salad
• Vanilla gelato

Leftovers and Storage

• Store filled bomboloni in the refrigerator for up to 2 days.
• Keep in an airtight container.
• Let sit at room temperature for 15 minutes before serving.
• Custard can be made 2 days ahead.
• Unfilled bomboloni can be frozen for up to 1 month.

FAQ

Q: Can I make the custard ahead of time?
A: Yes. Store it in the refrigerator for up to 2 days.

Q: Can I bake bomboloni instead of frying?
A: Yes, but the texture will be different and less traditional.

Q: Why didn’t my dough rise?
A: The yeast may have been old or the milk may have been too hot.

Q: Can I use store-bought custard?
A: Yes, but homemade custard gives the best flavor.

Q: How do I know the oil is ready?
A: Use a thermometer and keep it around 350°F (175°C).

Final Thoughts

Italian Custard Bomboloni are one of those treats that feel extra special from the very first bite. The soft dough, sweet sugar coating, and creamy vanilla custard filling come together perfectly. Take your time with the dough, enjoy the process, and you’ll be rewarded with bakery-quality bomboloni right from your own kitchen. If you make them, leave a comment and share how they turned out for you.