Can you make a sponge cake with just milk butter flour and sugar?

Yes, you can make a sponge cake with just milk, butter, flour, and sugar. Here's a recipe:

Ingredients:

- 1 cup all-purpose flour

- 1 cup sugar

- 2 tablespoons butter, melted

- 1 cup milk

- 1 teaspoon baking powder

- 1/2 teaspoon baking soda

- 1/2 teaspoon salt

- 1 teaspoon vanilla extract

Instructions:

1. Preheat the oven to 350°F (175°C).

2. Grease and flour a 9-inch round baking pan.

3. In a medium bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.

4. In a separate bowl, whisk together the melted butter, milk, and vanilla extract.

5. Add the wet ingredients to the dry ingredients and whisk until just combined. Do not overmix.

6. Pour the batter into the prepared baking pan and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean.

7. Let the cake cool completely before serving.

Enjoy your delicious sponge cake!