Banana Chocolate Chip Cookies

I had a really dead banana lying about, but only one, which isn't
enough for banana bread.  So, I made this up.

1/2 C butter
1 C brown sugar
1/2 C white sugar
2 eggs
1 tsp vanilla
1 very dead banana
3 C whole wheat pastry flour
1 tsp baking soda
"three handfuls" chocolate chips

(Sorry about the chocolate chip measurement.  I didn't measure.)

Cream butter and sugars.  Add eggs, vanilla, and banana, beat well.
Mix baking soda into flour, mix into wet.  Add chocolate chips and
stir.  Bake at 375 for about 12 minutes.