Chocolate chip cake

So I've been baking lots of cookies, and they've always been a little too close together, and so when I take them out of the oven, it's like a thin cake since it's all connected. I changed what I did was make a cake and just add chocolate chips. Actually the chocolate chip cake tastes nothing at all like cookies but it was never supposed. Here's the recipe:

1 cup Chocolate chips
1 1/4 cup White rice flour
1 1/4 cup Tapioca flour
1 teaspoon Xanthan gum
1/2 cup Brown sugar
1/2 cup Granulated sugar
1 teaspoon Vanilla
1/2 tablespoon Agave syrup
1/2 cup Softened butter
2 teaspoons Baking powder
1/2 teaspoon Salt
1 cup Milk
2 Eggs

Put oven to 350°. Put all dry ingredients in large mixing bowl except for the chocolate chips. Mix wet ingredients together until everything is mixed together. Pour wet ingredients onto dry ingredients. Mix together until dry ingredients are no longer visible. Add in chocolate ships, then mix again. Then pour into greased 9 x 13 inch cake pan. Bake for 25 minutes.