Name: Apple Crumble Bars
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 15 bars
Ingredients: 3 cups all-purpose flour; 3/4 cup packed brown sugar; 3/4 cup granulated sugar (, divided); 2 teaspoons cinnamon; 1/4 teaspoon of salt; 1 large egg; 1 cup ((2 sticks) cold unsalted butter, cut into small pieces); 2 teaspoons cornstarch; 4 medium-sized apples (, cored and grated)