As unlikely as this cake may seem at first blush, it is very good!
Preheat oven to 350.
Mix first 3 ingredients and let cool. Cream next 6 ingredients together. Add date mixture.
Pour into greased 9x13 cake pan.
Mix chocolate chips, nuts, and brown sugar together, and sprinkle on top of batter.
Bake until done (approximately 35 minutes).