¾cupsunsalted buttersoftened (omit salt if you use salted butter)
2eggs
½teaspoonvanilla extract
¾cupsmilk
2cupsblueberries
For the Topping:
¼cupbrown sugar
¼cupsall purpose flour
1teaspoonsground cinnamon
¼cupsbutter
blueberriesif desired
Instructions
Preheat oven to 350 degrees.
Grease a 9"x9" square pan.
In a large mixing bowl, sift together the flour, sugar, baking powder and salt. On low speed, add in the butter, egg, vanilla extract and milk and mix beat together for 2 minutes.
Gently fold in the blueberries; spread in pan.
For the Topping:
In a separate bowl, using a pastry cutter or your fingers, combine flour, brown sugar, and cinnamon until crumbly. Cut in the cold butter with your fingertips or a pastry cutter until pea-sized crumbs form.
Sprinkle the crumble topping evenly over the cake batter. Add a few blueberries on top, if desired.
Bake at 350 degrees until toothpick inserted in the center comes out clean, approx 35-45 minutes.