Puree bananas in blender (1 cup). Beat bananas, eggs, sugar, margarine and vanilla in medium bowl until well blended.
Combine flour, baking powder, cinnamon and salt in large bowl. Stir in chocolate chips and nuts. Make well in center of dry ingredients. Add banana mixture. Stir just until blended. Spoon into well-greased 2-1/2 inch (6 cm) muffin pan cups.
Bake at 350 degrees F (180 C), 25 to 30 minutes or until toothpick inserted in center comes out clean. Cool slightly, remove from pan and place on wire rack.
Makes 12 muffins.
Date: October 18, 2002