Instructions

  1. Set oven to 350 degrees.
  2. Grease or line 12 regular-size muffin tins with paper liners.
  3. In a large bowl mix together flour, baking powder, baking soda, salt cinnamon, nutmeg (if using) and blueberries.
  4. In another bowl beat banana, sour cream, sugar, egg and vanilla until just blended; stir into the dry blueberry mixture JUST until combined (do not over mix a few small lumps are fine!).
  5. Scoop/divide the mixture between the muffin tins.
  6. Bake for 15-20 minutes or until the muffins test done.
  7. *NOTE* for a double recipe; because of the large amount of baking powder prepare each recipe in two separate bowls, do not double one recipe into one bowl.