Combine all dry ingredients, in separate bowl combine all wet ingredients. Fold wet into dry trying not to over mix. Fold in blueberries.
Fill muffin tins that have paper inserts or are sprayed with baking spray. Combine 1/2 cup granulated sugar with zest of one lemon. Sprinkle evenly over muffins.
Bake in 350 oven 20-25 minutes until tops are firm to the touch.
Submitted by: Susie