We used jumbo muffin cups to create single-serving coffee cakes made with chocolate chips and pecans.
You can make this coffee cake in a greased 8-inch square pan instead. Bake 25 minutes or until toothpick inserted in center comes out clean. Cut into 9 squares to serve.
Swap walnuts for pecans for a subtle flavor twist.
For a double-chocolate, slightly sweeter coffee cake, replace half of the dark chocolate chips in both the batter and topping with milk chocolate chips.