crumb topped banana muffins

Ingredients For crumb topped banana muffins

• 1 1/2 c

  all purpose flour
• 1 tsp

  baking soda
• 1 tsp

  baking powder
• 1/2 tsp

  salt
• 3 lg

  bananas, mashed
• 3/4 c

  sugar
• 1

  egg
• 1/3 c

  butter, melted
• CRUMB TOPPING
• 1/3 c

  brown sugar, packed
• 1 Tbsp

  flour
• 1/8 tsp

  cinnamon
• 1 Tbsp

  cold butter
• 1/4 c

  chopped nuts