Peach Crumb Bars

INGREDIENTS

• :
• 3 cups all-purpose flour
• 1 cup granulated sugar
• 1 teaspoon baking powder
• ¼ teaspoon salt
• 1 cup (2 sticks) unsalted butter, cold
• 1 egg, lightly beaten
• 5 cups diced or sliced peaches (about 7 peaches, peeled)
• 2 tablespoons lemon juice
• ½ cup all-purpose flour
• ½ teaspoon ground cinnamon
• ¼ teaspoon ground nutmeg