Step 1

Preheat the oven to 375℉/190℃. Position rack to middle.

Step 2

Paper line 12 muffin cups.

Step 3

In a large mixing bowl, sift together dry ingredients. Whisk in the brown sugar. Set aside.

Step 4

In another bowl, mash the bananas.

Step 5

Beat in egg,oil and vanilla. Mix well.

Step 6

Add the wet mixture all at once to the dry ingredients. Stir just until moistened.

Step 7

Gently fold the chocolate chips (if using).

Step 8

Fill muffin liners 3/4 full.

Step 9

Bake for 20-25 minutes or until top bounces back when lightly touched.