This is a traditional Indonesian cake, called bolu kukus, or steamed cake. As the name indicates, it's steamed, not baked. After it's done, the cupcake will bloom and look like a flower. The cake itself is so soft and fluffy.

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Recipe Summary

prep:
15 mins
cook:
25 mins
total:
40 mins
Servings:
20
Yield:
20 cupcakes
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Ingredients

20
Original recipe yields 20 servings
The ingredient list now reflects the servings specified
Ingredient Checklist

Directions

Instructions Checklist
  • Place a steamer insert into a saucepan and fill with water to just below the bottom of the steamer. Bring water to a boil. Line 20 small muffin cups or ramekins with paper liners.

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  • Sift flour and baking soda together in a bowl.

  • Beat sugar, egg yolks, egg whites, and vanilla extract with an electric mixer in a separate bowl until very fluffy. Stir the flour mixture and soda in gradually; mix well. Place yellow, green, and red food coloring into 3 separate bowls. Mix about 4 tablespoons of batter into each bowl.

  • Fill the muffin cups 3/4-full with the original batter. Drizzle with the yellow, green, and red batters. Carefully place the muffin cups into the steamer. Place a clean kitchen cloth below the lid to prevent steam from dripping onto the cakes. Cook, covered, until tops spring back when pressed, about 20 minutes.

Nutrition Facts

118 calories; protein 2.9g 6% DV; carbohydrates 23.8g 8% DV; fat 1.2g 2% DV; cholesterol 51.2mg 17% DV; sodium 45.1mg 2% DV. Full Nutrition