Homemade Pop Tarts

Name: Homemade Pop Tarts
Prep time: 2 h 15 min
Cook time: 25 min
Total time: 3 h
Yield: 6
Ingredients: Ingredients; Strawberry Filling; 1/2 cup strawberry jam; 1 tablespoon cornstarch; 1 tablespoon lemon juice; 2 cups all-purpose flour; 1 tablespoon granulated sugar; 1 teaspoon salt; 1 cup cold unsalted butter, cubed; 1 large egg; 2 tablespoons milk; 1 egg beaten with 1 tablespoon water (for egg wash); Simple Glaze; 1 cup powdered sugar; 3-4 tablespoons milk; 1/2 teaspoon vanilla extract; Food coloring (optional); Sprinkles (optional)