Name: Blueberry Crumb Bars
Prep time: 5 min
Cook time: 45 min
Total time: 50 min
Yield: 9 x13 inch pan of bars
Ingredients: 1 cup sugar (plus extra 1/3 cup for blueberries); 1 tsp. baking powder; 3 cups all-purpose flour; 1 cup unsalted butter; 1 egg; 1 tsp. vanilla extract; 1/2 tsp. salt; zest of one lemon; 4 cups fresh blueberries; 3 Tbsp. cornstarch