This cake can be made in a bowl with a whisk or with an electric mixer.
Preheat oven to 350°
Prepare an 8" round cake pan with baking spray or shortening and flour, apply a wet baking strip for a smooth flat cake.
In a medium bowl whip brown sugar with granulated sugar and the eggs until fluffy.
Add in the flour, baking powder, baking soda, and salt and mix to combine while adding in the milk, butter, and oil and mix until completely combined and well blended.
Pour batter into the cake pan.
Bake at 350° for 30 minutes or until a toothpick comes out clean.
Allow cake to cool for 10 minutes, then turn out onto a cooling rack.
Mix frosting by whipping butter with powdered sugar and adding cream and vanilla until whipped smooth.
Spread frosting onto cooled cake and top with chocolate chips and or chocolate chip cookies.
Cake is best served at room temperature.