Skinny Blueberry Buttermilk Muffins

INGREDIENTS

1 cup

all purpose flour (125g; fluffed, spooned & levelled)

1 cup

whole wheat flour (125g; fluffed, spooned & levelled)

3 tsp

baking powder

1/2 tsp

salt

zest of 1 lemon (2 tbsp approximately)

1/2 cup

unsweetened applesauce

1/4 cup

greek yogurt (I used 2%)

1/3 cup

granulated sugar (67g)

egg (lightly beaten)

1 cup

buttermilk (I used 1%)

1 tsp

vanilla

1 cup

blueberries (fresh if possible)

2 tsp

coarse sugar (for sprinkling tops)