Ingredient:

• 2-1/2 cups all-purpose flour
• 1/4 teaspoon salt
• 1/4 cup cold unsalted butter, cubed
• 6 to 8 tablespoons cold water
• 1/2 cup unsalted butter, frozen and shredded (keep frozen)
• FILLING:
• 1/3 cup all-purpose flour
• 1-1/4 cups whole milk, divided
• 1-1/3 cups sugar
• 2/3 cup water
• 1 cinnamon stick (3 inches)
• Peel from 1/2 lemon, cut into ribbons
• 1 teaspoon vanilla extract
• 6 large egg yolks, beaten
• Optional: Confectioners' sugar and ground cinnamon