Step 1

Preheat the oven to 350 degrees Fahrenheit (175°C) and move the rack into the middle.

Step 2

Whisk the sugar and flour in a large bowl until well distributed. Or do this in the bowl of a stand mixer on low with the whisk attachment.

Step 3

Add the eggnog, beaten eggs, and vanilla to the sugar and flour mixture, then beat until everything is smooth and well incorporated. (Now is the time to incorporate any optional ingredients.)

Step 4

Slowly pour the melted butter into the batter and mix to incorporate.

Step 5

Put the pie crust on a baking tray, then carefully pour the eggnog mixture inside.

Step 6

Bake the pie for 45 to 60 minutes. The pie is ready when the edges are set, but the center jiggles a little. (Baking times vary, so check the pie after 40 minutes.)

Step 7

Remove the pie from the oven and let it cool on the counter. Then place it in the fridge to set for at least six hours before serving.