Cinnamon Streusal Coffee Cake

INGREDIENTS

Streusel topping:

2/3 cup

granulated sugar

salt (if you use unsalted butter)

3/4 cup

King Arthur Unbleached All-Purpose Flour

1/2 tbsp

ground cinnamon

4 tbsp

butter, melted

Filling:

1 cup

brown sugar, light or dark

1 1/2 tbsp

ground cinnamon

1 tsp

unsweetened cocoa powder (for color not for taste- you can leave it out if you want.)

Cake:

3/4 cup

butter softened

1 tsp

salt (1 ¼ teaspoons if you use unsalted butter)

1 1/2 cups

granulated sugar

1/3 cup

brown sugar

2 1/2 tsp

baking powder

2 tsp

vanilla extract

large eggs

3/4 cup

plain Greek yogurt. (regular yogurt would also be ok.)

1 1/4 cups

milk (anything from skim to whole)

3 3/4 cups

All-Purpose Flour