Prep Time: 20 mins
Cook Time: 50 mins
Total Time: 1 hrs 10 mins
Servings: 8
Yield: 1 9-inch pie

Ingredients:

• cooking spray
• 1 cup white sugar
• 3 tablespoons butter, melted
• 3 egg yolks
• 1 cup cake flour
• 1 teaspoon baking powder
• ¼ teaspoon salt
• 4 cups milk
• 1 teaspoon vanilla extract
• 3 egg whites
• 1 tablespoon cinnamon sugar

Preheat the oven to 375 degrees F (190 degrees C). Coat a 9-inch deep-dish pie plate with cooking spray.

Mix together sugar and butter in a large bowl until smooth. Add egg yolks and beat until light and fluffy. Sift in cake flour, baking powder, and salt; stir until well-blended. Mix in milk and vanilla until combined.

Whip egg whites with an electric mixer in a separate bowl to stiff peaks. Fold into batter. Pour into the prepared pie plate; sprinkle cinnamon sugar on top.

Bake in the preheated oven for 25 minutes, then reduce temperature to 325 degrees F (165 degrees C). Continue baking until the center is set when pie is gently jiggled, 25 to 30 minutes.