- Why did the center collapse?
- You probably opened the oven door too early, and the sudden temperature drop caused the still unstable cake structure to collapse.
Fluffy Coconut Sponge Cake
The secret to a perfect sponge cake is air: millions of tiny bubbles in the beaten eggs inflate the batter in the hot oven. Adding shredded coconut makes the batter heavier, so precise beating of the eggs and the help of baking powder are especially important here to ensure the cake doesn't become dense but remains light and buttery.
Ingredients
1
cup
All-Purpose Flour (+2 tbsp)
1
cup
Shredded Coconut
4
large
Eggs (room temperature)
3/4
cup
Sugar
3.5
oz
Unsalted Butter (melted, lukewarm)
1
tsp
Baking Powder
1
tsp
Vanilla Extract
1
pinch
Salt
Shopping List (0)
Equipment Needed
- Electric mixer
- Baking pan
Allergen Information
Egg
Milk
Wheat
Tree Nut (Coconut)
Instructions
1
✓
Preheat the oven to 350°F (180°C). Grease the baking pan.
Tip: The hot oven immediately activates the baking powder and gas bubbles.
2
✓
Beat the eggs with the sugar until pale and fluffy (about 5-8 minutes).
Tip: It's ready when the volume multiplies and becomes a thick cream. This is the basis of 'mechanical leavening'.
3
✓
Drizzle in the melted butter and vanilla, mixing gently.
Tip: The butter shouldn't be hot, or it might scramble the eggs!
4
✓
Mix the dry ingredients (flour, coconut, baking powder, salt) and fold them into the egg mixture.
Tip: Mix only until just combined. Overmixing strengthens gluten strands, making the cake tough and chewy.
5
✓
Pour into the pan and bake for 25-30 minutes (perform a toothpick test).
Tip: If the toothpick comes out clean, the center of the cake is baked.
6
✓
Let it cool for 10 minutes in the pan before turning it out.
Tip: While warm, the sponge structure is still weak and breaks easily.
Recipe FAQ
Ingredients
- 1 cup All-Purpose Flour (+2 tbsp)
- 1 cup Shredded Coconut
- 4 large Eggs (room temperature)
- 3/4 cup Sugar
- 3.5 oz Unsalted Butter (melted, lukewarm)
- 1 tsp Baking Powder
- 1 tsp Vanilla Extract
- 1 pinch Salt