Blueberry Crumble Bars

1 pt. of blueberries
1-1/2 cups all-purpose flour
1/2 teaspoon baking powder
1/8 teaspoon salt
1 stick cold salted butter (cubed)
1 large egg
1 pint of blueberries
3/4 cup sugar
1/8 Cup lime or lemon juice (2 T)
2 teaspoons cornstarch

Preheat the oven to 375°F. Butter a 9×9″ glass baking dish and set it aside.
Combine the flour, 1/2 cup sugar, salt and baking powder in a mixing bowl.
Add the butter. Using your fingers, or a pastry blender (if you have one) to incorporate the butter into the dry ingredients.
Cut the butter into the dry ingredients until you have a crumble.
Beat the egg in a separate bowl drizzle into the crumble and mix in with a fork.

Press 1/2 of the mixture into the bottom of the baking dish.
In separate bowl, whisk together the lime juice, 1/4 cup sugar and cornstarch.
Gently mix in the blueberries toss them to coat completely.
Layer all the blueberries on top of the crumb mixture in the baking dish. Evenly sprinkle the remaining crumb mixture on top.
Bake the blueberry crumble bars for 45 to 50 minutes, you will be able to see the blueberries bubbling the crumb top will be golden brown.
Allow the bars to cool completely before cutting -they can be refrigerated overnight.

Yield: 12 bars. Adapted from: the smitten kitchen