Old-Fashioned Chocolate Pie

1 pre-baked 9-inch pie crust

1 cup granulated sugar

1/4 cup unsweetened cocoa powder

1/4 cup all-purpose flour

1/4 tsp salt

2 cups whole milk

3 large egg yolks, lightly beaten

2 tablespoons unsalted butter

Whisk Dry: In a medium saucepan, whisk together the sugar, cocoa powder, all-purpose flour, and salt.

Combine Wet: In a separate bowl, lightly beat the egg yolks with the whole milk.

Mix: Gradually whisk the egg-milk mixture into the saucepan until smooth.

Cook Filling: Cook over medium heat, stirring constantly, until the mixture thickens to a pudding consistency and begins to bubble. Continue to cook for 1 minute while stirring.

Add Butter: Remove from heat and stir in the unsalted butter until melted.

Assemble Pie: Pour most of the hot chocolate filling into the pre-baked pie crust. To create the decorative top seen in the photo, set aside a small portion of the filling (about 1/4 cup). Spoon or pipe this remaining filling in dollops around the edge and in the center.

Chill & Set: Let the pie cool to room temperature, then refrigerate until fully set (about 4 hours). Once set, slice and serve.