Baking with Whole Grains: Blueberry Buckle Coffee Cake

INGREDIENTS

For the streusel:

3/4 cup

granulated sugar

1/2 cup

whole wheat pastry flour

1/4 cup

unbleached all-purpose flour

1/4 cup

old-fashioned rolled oats

1 tsp

ground cinnamon

1/4 tsp

grated nutmeg

1/4 tsp

salt

6 tbsp

unsalted butter, at room temperature

For the cake:

2 cups

white whole wheat flour

1/2 cup

unbleached all-purpose flour

2 tsp

baking powder

1/2 tsp

salt

4 tbsp

unsalted butter, at room temperature

1 cup

granulated sugar

large eggs

1/2 cup

milk

1 tsp

vanilla extract

2 cups

blueberries*