Chocolate Marvel Pie

I received this recipe in a recipe-swap-by-mail about 20 years ago, and am finally posting it here for safekeeping. Prep time given does not include chilling time.

• Ready In: 15 mins
• Serves: 6-8

Ingredients

• 1 (9 inch)  pie crusts, shell baked and cooled
• 6  ounces  semi-sweet chocolate chips
• 2  tablespoons sugar
• 3  tablespoons milk
• 4  eggs, separated
• 1  teaspoon vanilla
•  whipped cream (optional)
•  roasted chopped  almonds (optional)

Directions

1. Melt chocolate pieces with sugar and milk in double boiler, stirring occasionally. Cool.
2. Beat in egg yolks, one at a time. Stir in vanilla.
3. In separate bowl, beat egg whites until stiff. Fold into chocolate mixture.
4. Pour into cooled pie shell. Refrigerate several hours or overnight.
5. If desired, garnish with whipped cream and sprinkle with roasted chopped almonds.