The Best Blueberry Coffee Cake

INGREDIENTS

1 cup

white whole wheat flour

1/2 cup

all-purpose flour

1/3 cup

granulated sugar

1 tbsp

baking powder (I recommend aluminum free)

1 tsp

cinnamon

1/2 tsp

kosher salt

and 1/2 cup blueberries, fresh or frozen (If using frozen, rinse with water for 1 minute, then drain off excess liquid)

Zest of 1 small or 1/2 large lemon

1/2

cup, plus 1 tablespoon non-fat milk

egg

1/4 cup

unsweetened applesauce

1/4 cup

white whole wheat flour

1/4 cup

brown sugar

1/2 tsp

cinnamon

2 tbsp

cold unsalted butter, diced

1/4 cup

walnuts, chopped