Banana Chocolate Chip Muffins

Back in college Teresa and I lived in a house with a bunch of girls.  We listened to lots of Red Hot Chili Peppers and The Shins. No matter what shirt I wore, you could usually see my stomach (apparently that was the style). Teresa still ate gluten  and I created Muffin Mondays for my roommates. Basically, I got up extra early on Mondays and made muffins for everyone. Needless to say, it was a pretty big hit. Who doesn't like muffins?
Here's one of my roommates' favorites:

Banana Chocolate Chip Muffins
(adapted from Cook's Encyclopedia of Cookies)

2 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
pinch of salt
3 large ripe bananas
1 egg
1/4 cup brown sugar
1/4 cup vegetable oil
1/2 cup chocolate chips (or more!)

Grease muffin pans or use paper liners.
Sift together flour, baking powder, baking soda and salt.
Mash the bananas with electric mixer. Beat egg, sugar and oil into mashed bananas.
Add the dry ingredients, beating on low until just incorporated.
Mix in chocolate chips.

Fill muffin tins 2/3 full and bake for 20 minutes. Makes 12 muffins.