Custard German Buttercream Recipe

Custard German Buttercream Recipe

How To Make Custard German Buttercream

Custard German Buttercream Recipe

Preparation: 15 minutes
Cooking: 10 minutes
Cooling Time: 1 hour
Total: 1 hour 25 minutes



  • 1egg
  • 1cupwhite sugar
  • ½cupmilk
  • 1⅓cupsunsalted butter,at room temperature
  • 1tbsprum
  • 1tspvanilla extract


  1. Beat egg with a fork in a small, heavy saucepan.

  2. Mix in sugar and milk.

  3. Heat on medium-low heat, whisking constantly, until it just starts to boil.

  4. Continue beating rapidly until mixture thickens to a thin custard consistency.

  5. Remove from heat and cool completely, about 1 hour.

  6. Beat butter in a bowl with an electric mixer until light and creamy, about 5 minutes.

  7. Add cooled custard, 1 to 2 tablespoons at a time, beating well after each addition.

  8. Beat in rum and vanilla extract.

  9. Keep beating until buttercream is very light and fluffy.


  • Calories: 130.18kcal
  • Fat: 10.56g
  • Saturated Fat: 6.63g
  • Trans Fat: 0.41g
  • Monounsaturated Fat: 2.76g
  • Polyunsaturated Fat: 0.43g
  • Carbohydrates: 8.62g
  • Sugar: 8.61g
  • Protein: 0.49g
  • Cholesterol: 34.29mg
  • Sodium: 6.22mg
  • Calcium: 9.88mg
  • Potassium: 12.65mg
  • Iron: 0.04mg
  • Vitamin A: 91.47µg
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