sponge cake

Butter sponge cake

Baking

The Spanish Genoese cake: butter and sugar beaten together until light, then mixed with egg yolks, flour with baking powder, and finally folded in whipped…

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The flour weighs the same as the eggs, and the sugar weighs two-thirds of that weight.

Ingredients and directions

  • Prep time20 min
  • Cook time45 min
  • Resting20 min
  • Total1 hr 25 min
  • DifficultyEasy
  • CostBudget
  • Cooking methodfour
  • Estimated cost$2.48 $0.41 / serving Estimated price; varies by store. Converted from euros at the ECB rate of October 15, 2026.
  • Vegetarian

Ingredients

6 people
  • $1.20
  • $0.20
  • $0.07
  • $0.92
  • $0.09

Prices from US supermarkets for 4 of 5 ingredients; Belgian prices for the rest.

Directions

  1. Whip the butter and sugar together until you have a pale yellow, doubled-in-volume mixture. ≈ 4 min
  2. Separate the egg whites and yolks. Whisk the yolks until light and fluffy, then fold them into the butter cream. ≈ 4 min
  3. Mix the flour and yeast together, sift them, and then pour them into the dough in a thin stream, gently incorporating them. ≈ 4 min
  4. Whip the egg whites to stiff peaks and gently fold them into the mixture, using circular motions, without deflating the batter. ≈ 10 min
  5. Grease a baking dish, line the bottom with greased parchment paper, and pour in the batter. Bake for at least 45 minutes in a preheated oven at 180 °C.
  6. Let it cool before serving.

The bill

Butter sponge cake

  • 3 eggs$1.20
  • Their weight in flour (approximately 150 g)$0.20
  • Two-thirds of their weight is sugar (approximately 100g).$0.07
  • 100 g of butter, plus a little extra for the mold$0.92
  • 1 package of baking powder$0.09

Total$2.48

that's $0.41 per person

Estimated price; varies by store.

Before you start

Ingredients

  • 3 eggs
  • Their weight in flour (approximately 150 g)
  • Two-thirds of their weight is sugar (approximately 100g).
  • 100 g of butter, plus a little extra for the mold
  • 1 package of baking powder

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