Bev's Chocolate Pie

Step 1
Preheat the oven to 350 degrees F (175 degrees C).

Step 2
Whisk 2 cups sugar, cocoa, and flour together in a saucepan. Blend in evaporated milk and vanilla.

Step 3
Beat egg yolks and stir into chocolate filling.

Step 4
Add butter and heat, stirring constantly, until butter is just melted.

Step 5
Pour filling into unbaked pie shell.

Step 6
Bake in the preheated oven until pie is just set, about 35 to 40 minutes.

Step 7
Beat egg whites in a glass, metal, or ceramic bowl until foamy. Gradually add sugar, continuing to beat until stiff peaks form.

Step 8
Spread meringue over pie filling, covering completely.

Step 9
Return pie to oven and bake until meringue is lightly browned and golden, about 8 to 10 minutes.