2 Blend butter or margarine, sugar, egg, banana, coffee, and vanilla
in food processor for 2 minutes. Add flour, salt, baking powder, and
soda, and blend just until flour disappears. Add chocolate chips and
mix in with wooden spoon. Spoon mixture into 15 to 18 paper-lined
muffin cups.

3 Bake for 25 minutes. Cool on wire racks.

Makes 15 - 18 muffins