"This recipe is great for people who do not have much of a sweet tooth. For those who love sweet things, you can add as much sugar as you want to suit your taste buds! It is delightful and quick to make.
I usually make it for my husband on his birthday. It's his favorite!"
Stir graham cracker crumbs and melted butter together in a bowl; press firmly into a pie dish.
Beat eggs and white sugar together in a bowl; mix in cornstarch and cake flour.
Heat milk and cinnamon stick together in a saucepan until just under the boiling point, 5 to 10 minutes. Pour milk mixture into egg mixture, whisking constantly. Pour milk-egg mixture back into saucepan.
Cook milk-egg mixture over medium heat, whisking constantly, until mixture thickens, 5 to 10 minutes. Remove from heat and stir in 2 tablespoons butter and vanilla extract until completely incorporated.
Pour milk mixture into prepared crust and sprinkle with cinnamon sugar.