
1. Melt 1/2 cup butter and let cool.
2. Whisk together 1 1/2 Tbsp cocoa, 4 Tbsp all-purpose flour, 1 c sugar, and a pinch of salt.
3. Whisk in melted butter, 1 tsp vanilla, and 2 eggs until smooth. If your butter is still a bit hot, temper the eggs first.
4. Pour into crust and bake at 325 until middle is set. Let cool before serving.
For something new, try replacing the vanilla with your favorite liqueur, such as Bailey's or Kahlua.