Easy Blueberry Crumble Bar

• 1 1/12 cups granulated sugar
• 3 cups all purpose flour1
• 1 teaspoon baking powder
• 1 teaspoon salt
• 1 piece lemon juice and zest
• 1 cup unsalted butter, cold and cut into cubes
• 1 piece egg, lightly beaten
• 4 teaspoons corn starch
• 3 cups blueberries

1. Preheat oven to 375F. Grease a 9x13 inch pan.
2. Mix 1 cup sugar, flour, baking powder, salt and lemon zest in a food processor.
3. Add butter and egg, process until the mixture resembles coarse meal.
4. Pat half of the mixture into the prepared pan.
5. In another bowl, stir together the remaining 1/2 cup sugar, cornstarch and lemon juice. Gently mix in the blueberries. Sprinkle the blueberry mixture evenly over the crust.
6. Crumble remaining dough over the berry layer.
7. Bake in preheated oven for 45 to 50 minutes, or until top is slightly brown. Cool completely before cutting into squares.

sugar, baking powder, salt, lemon juice, unsalted butter, egg, corn starch, blueberries

Taken from food52.com/recipes/33132-easy-blueberry-crumble-bar (may not work)