Steps
- Preheat the oven to 350°F / 175°C. Grease a 9in / 23cm pie plate. Cream ¼ cup of unsalted butter with ¼ cup of sugar; beat in ½ beaten egg.
- Mix in 1 cup of all-purpose flour, 1 teaspoon of baking powder, and half of 2 pinches of salt. Press into the plate and bake for 20 minutes, until golden.
- Bring 2¼ cups of milk, ⅓ cup of sugar, and 1 tablespoon plus 2¼ teaspoons of unsalted butter to a boil in a saucepan.
- Whisk 1½ eggs, 3¾ teaspoons of all-purpose flour, 3¾ teaspoons of cornstarch, and the remaining salt. Gradually whisk in the hot milk.
- Return to the pan and stir over medium-low heat until thickened. Stir in 1 teaspoon of vanilla extract, pour into the crust, and cool. Dust with 1 teaspoon of ground cinnamon.