Chocolate Pie - cooking recipe

Ingredients

3 egg yolks
1 c. sugar
1 1/2 c. milk
1 tsp. vanilla
2 Tbsp. flour or cornstarch
4 Tbsp. cocoa
crust, baked
3 egg whites

Preparation

Mix the first 6 ingredients; cook in double boiler until thick.
Pour into crust that has been baked.
Beat egg whites and put on top, then brown.