Step 1

Whisk together the flour, baking powder, baking soda, cinnamon, nutmeg and salt in a large mixing bowl.  Add melted butter, brown sugar, white sugar, vanilla extract, milk and egg. Mix well with a spoon. Pour in sourdough starter and mix with spoon.

Step 2

Spray a large six cup muffin tin or a 12 cup muffin tin with cooking spray.  Fill cups 1/2 full.  Bake in a preheated 400 degree oven for 17 to 20 minutes.

Step 3

Makes 6 large muffins or 12 regular muffins