Delicious Banana Chocolate Chip Muffins

My roommate and I have a problem eating bananas before they get overly ripe. We usually have a few very brown bananas in our freezer, just waiting for use in a recipe. So tonight I made some yummy muffins - the kitchen smells FABULOUS. Here's the recipe:

Banana Chocolate Chip Muffins

2 1/2 C. flour
1 tsp. baking powder
1/2 tsp. baking soda
1/2 tsp. salt
1 Tbs. baking cocoa
1 1/3 C. mashed bananas
1 C. softened margarine
1 1/4 C. sugar
1 egg
1 C. chocolate chips
1/3 C. chopped pecans

Preheat oven to 400 degrees. Combine dry ingredients. Mix butter and sugar until fluffy and beat in egg. Mix in mashed bananas. Stir in flour mixture (don't over mix). Fold in chocolate chips and nuts. Bake for 15 minutes. Makes 21 muffins.