You could also try a 'wacky cake', they usually are chocolate, but if you replace the cocoa powder with the same amount of corn starch and add a teaspoon more of vanilla, it is a nice fluffy vanilla cake. You can also use another flavor extract, like lemon or almond depending on what you want (and remove the coffee). Here is the original chocolate recipe that makes a 2 layer 9 inch cake, a 9x13 sheet cake, or 24 cupcakes. Good Luck!
3 cups unbleached all-purpose flour
2 cups sugar
1/3 cup unsweetened cocoa
2 tsp baking soda
1 tsp salt
2 tsp vanilla extract
1 1/2 tbsp vinegar
1/2 cup vegetable oil
2 cups cold water
1 tbsp coffee powder
Preheat oven to 350.
In a large mixing bowl, mix flour, sugar, cocoa, soda and salt. Make three wells in the flour mixture. In one put vanilla; in another the vinegar, and in the third the oil. Dissolve the coffee powder in the cold water (or just use cold coffee for a slightly more mocha taste) and pour the water over the mixture. Stir until smooth.
Divide evenly into prepared pans. Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.