Mix together all of the dry ingredients , gluten free flour, oats, baking powder, soda, and salt
Add in wet ingredients, applesauce, vanilla, beating the eggs first in a small bowl and then adding mixed eggs to the wet ingredients, add in the sugar. Mixing all ingredients together.
Fold in the blueberries gentle.
Let mixed ingredients set for 2 minutes before scooping into pan
Spray a 12 cup baking pan or a 6 cup muffin tin with cooking spray, fill each 12 cup with 1/4 cup of batter or each 6 cup muffin pan with a 1/2 cup of batter.
Bake at 350 degree for 16 -18 minutes for a 12 cup cupcake pan or 20-22 minutes for a 6 cup muffin pan. or until a cake tester comes out clean.
When muffins are done let cool before serving.