Vanilla buttercream with egg yolks

Name: Vanilla buttercream with egg yolks
Prep time: 15 min
Cook time: 3 min
Total time: 18 min
Yield: About 900 g
Cuisine: Slovak
Ingredients: 350 g Butter; 2 Egg yolks; 300 g Powdered sugar; 200 ml Milk; 2 packets Vanilla sugar (20 g each); 1 tsp Rum flavoring (rum extract)

Vanilla buttercream made with milk, egg yolks, powdered sugar, and butter, without pudding mix or flour. Makes about 900 g.

Slovak cuisine · Translated from Slovak · October 24, 2026

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Recipe at a glance

Prep time: 15 min
Cook time: 3 min
Total time: 18 min
Servings: About 900 g
Difficulty: Easy
Cuisine: Slovak

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This vanilla buttercream with egg yolks is made without pudding mix or flour; butter gives it its firmness. Cook the milk with the egg yolks and sugar for only about three minutes to prevent lumps, then let it cool before beating it into fluffy butter flavored with rum extract. The frosting has a pronounced vanilla flavor and spreads easily, making it suitable for cakes, pastries, and small desserts.

Instructions

Tip: tap a step to mark it as done.

Pour the milk into a saucepan and stir in the beaten egg yolks, powdered sugar, and vanilla sugar. Heat over low heat and cook, stirring constantly, for about 3 minutes.
The cooked mixture will be thin; it will thicken only after it is combined with the butter. Do not cook it for longer than 3 minutes, or lumps may form because of its high sugar content. Remove the saucepan from the heat, cover with aluminum foil, and let cool to room temperature.
Beat the butter until light and fluffy, add 1 tsp rum flavoring, and beat in the cooled milk mixture to finish the buttercream.

Tip: If the buttercream curdles as you beat in the milk mixture, set the bowl over warm water for a few seconds and continue beating. The butter will soften and the frosting will come back together.

Nutrition facts

Approximate values per 100 g, calculated from the ingredients

Energy: 434 kcal
Protein: 1.6 g
Carbohydrates: 38 g
of which sugars: 37 g
Fat: 32 g
of which saturates: 20 g
Fiber: 0.0 g
Salt: 0.0 g

Calculated from the raw ingredients, without frying oil. Where an amount is “to taste”, typical amounts are used. Food composition: USDA FoodData Central and product labels.

This recipe was translated from the Slovak original: Vanilkový maslový krém so žĺtkami – bez pudingu