Step 1

Preheat oven to 350ºF.

Step 2

Beat together all of the ingredients until smooth batter forms, reserving the chocolate chips if used.

Step 3

Mix in the chocolate chips with a rubber spatula.

Step 4

Pour the batter into a greased 9x13 baking dish. Bake for 30-40 minutes, or until the toothpick inserted comes out clean.

Step 5

Use an electric mixer to whisk together all of the icing ingredients until smooth. Spread on top of the cooled cake.