Heat over to 325 degrees. Line Muffin tin with liners.
Sift dry ingredients together in medium bowl.
Mash banana in measuring glass and add milk til it equals 3/4cup.
Pour banana into a small bowl and blend with wet ingredients.
Pour wet ingredients into dry and stir til just blended.
Fold in frozen blueberries.
Spoon into muffin cups.
Bake 25-30 mins.