This ColaCao sponge cake is a twist on the classic Spanish yogurt cake, made with the handy 1-2-3 rule and a generous dose of the iconic cocoa powder that tastes like childhood. The result is a tender, deeply chocolatey cake that comes together in one bowl with just a whisk.
Instead of the usual three measures of flour, this version uses two measures of flour plus one of ColaCao, which keeps the crumb moist and full of flavor. It bakes in a loaf pan or a 20 cm round tin and is perfect for breakfast, an afternoon snack, or as the base for a filled layer cake.
Everything is measured with a plain yogurt cup, so you barely need a scale. Serve it with a cold glass of milk and you have the ultimate Spanish merienda.


Ingredients for ColaCao Sponge Cake
Makes 12 slices
- 3 medium eggs
- 2 yogurt cups of sugar (250 g)
- 1 yogurt cup of olive oil (145 ml)
- 1 plain yogurt (125 g)
- 2 yogurt cups of all-purpose flour (160 g)
- 1 yogurt cup of ColaCao (100 g)
- 8 g baking powder

How to Make ColaCao Sponge Cake Step by Step
1. Beat the eggs with the sugar
Preheat the oven to 180 °C. Beat 3 medium eggs with 250 g of sugar (2 yogurt cups) for 3 minutes, until the mixture turns pale and creamy.

2. Pour in the oil
Slowly pour in 145 ml of oil (1 yogurt cup) and beat until fully incorporated.

3. Add the yogurt
Add the plain yogurt and mix until smooth and well combined.

4. Fold in the flour, ColaCao and baking powder
Add 160 g of all-purpose flour (2 yogurt cups) mixed with 100 g of ColaCao (1 yogurt cup) and 8 g of baking powder. Beat just until combined, without overmixing, so the cake stays fluffy.

5. Pour the batter into the pan
Pour the batter into a pan lined with parchment paper. The pan used here measures 24 x 12 cm, but a 20 cm round pan works with the same amounts.

6. Bake the cake
Bake at 180 °C for 50–60 minutes with top and bottom heat, until a toothpick inserted in the center comes out clean. Remove from the oven and let it rest for 10 minutes on a wire rack without unmolding.

7. Cool and serve
Unmold the cake and let it cool completely on the wire rack before slicing and serving.

Tips for the Best ColaCao Sponge Cake
Use the yogurt cup as your measure
Fill the empty yogurt cup to the very brim with each ingredient for accurate proportions. If you don't have a cup handy, use the gram and milliliter equivalents listed in the ingredients.
Don't overmix the batter
Fold the dry ingredients in just until no streaks of flour remain. Overbeating develops gluten and makes the cake dense instead of light and spongy.
Watch the baking time for other pans
A 24 x 12 cm loaf pan or a 20 cm round pan both work. If you use a different size, adjust the baking time and start checking for doneness a few minutes earlier.
| Prep time | 10 minutes |
|---|---|
| Cook time | 1 hour |
| Total time | 1 hour 10 minutes (plus cooling) |
| Servings | 12 slices |
| Category | Baking |
| Cuisine | Spanish |
| Calories | 267 kcal per serving |
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