Here’s a basic recipe for a Sponge Cake

Ingredients:

• 1 cup all-purpose flour
• 1 teaspoon baking powder
• 4 large eggs
• 1 cup granulated sugar
• 1/4 cup milk (optional for added moisture)
• 1 teaspoon vanilla extract
• A pinch of salt
• 1/4 cup melted butter (optional for added richness)

Instructions:

1. Preheat the oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch cake pan.
2. Mix dry ingredients: In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
3. Beat the eggs and sugar: In a large bowl, beat the eggs with the sugar using an electric mixer on high speed for about 5-6 minutes, or until the mixture is light, fluffy, and pale in color.
4. Add vanilla and milk (optional): Stir in the vanilla extract and, if desired, the milk for added moisture.
5. Fold in dry ingredients: Gently fold the dry ingredients into the egg mixture in small batches, being careful not to overmix.
6. Optional butter: If you’re adding melted butter for a richer flavor, gently fold it into the batter at this point.
7. Bake: Pour the batter into the prepared pan and smooth the top. Bake for about 25-30 minutes, or until a toothpick inserted into the center comes out clean.
8. Cool and serve: Let the cake cool completely in the pan before cutting and serving. You can serve the cake as is, with a dusting of powdered sugar, or with whipped cream or fruit.