Apple Coffee Cake

Breakfast this morning was an adapted version of this Apple Coffee Cake from Simply Recipes. I made a few changes based on comments on the blog:
- used a smaller pan than the 9-inch square called for, since there were some comments that there wasn't enough cake batter
- used brown sugar, butter, cinnamon, and walnuts for the topping (instead of white sugar and cinnamon)
- used half white whole-wheat flour, because I always try to sub some whole grains when I can


Here's a closeup of that luscious orange, direct from Florida. Boy, was it good.