GIANT CAKE WITH 1 CUP, Easy and economical

GIANT CAKE WITH 1 CUP, Easy and economical
Ingredients
Use the same cup to measure the ingredients
2 eggs
1 cup of sugar
2 cups of self-rising flour, (or you can replace the same amount of all-purpose flour with 1 tbsp of baking powder)
1/2 cup oil
1 Cup of milk
1 tsp vanilla essence
3 tbsp cocoa powder