Here's University Housing's recipe for this UW favorite.

Crust:
1 and 1/2 cup graham cracker crumbs
2 Tbsp. Granulated sugar
2 Tbsp. Butter

Mix thoroughly and press firmly in bottom and sides of a 9-inch pie tin.

Fudge Layer:
1/4 cup granulated sugar
1/3 cub water
3 1-oz. squares semi-sweet baking chocolate

Dissolve sugar in water and bring to a boil. Add chocolate and melt. Beat well. While hot spread over bottom of crust.

Cream Filling:

3 cups cold milk
1 cup granulated sugar
1/3 cup cornstarch
1/8 tsp. salt
1 cup cold milk
1/3 cup egg yolks, beaten
2 tsp. vanilla extract

Place 3 cups milk in top of a double boiler and heat until almost boiling. Blend in sugar. Stir in cornstarch. Stir together salt, remaining milk, egg yolks. Add to hot milk and bring to a boil, stirring constantly with a whip to keep smooth. Cool slightly. Then add vanilla extract and pour over chocolate in crust. Chill.

Topping:
1 cup whipping cream
2 Tbsp. Granulated sugar
1/4 tsp. vanilla extract
Grated or shaved chocolate.

Place cream in mixer bowl. Add sugar and vanilla, then whip until stiff. Spread on top of pie. Garnish with chocolate.