6 oz. semi-sweet chocolate chips
4 Tbsp. butter
1/2 c. sugar
2 c. milk
2 Tbsp. cornstarch
3 eggs, separated
2 tsp. vanilla flavoring
1 (9-inch) pie crust, baked
dash of cream of tartar
1/4 c. sugar

Melt chocolate and butter together in top of double boiler over simmering hot water, stirring until smooth. Add sugar and milk. Continue stirring over water until well blended. Dissolve cornstarch in 2 tablespoons water. Beat in egg yolks and vanilla.

Gradually beat into mixture in top of double boiler. Cook and stir continuously over water until mixture is smooth and thick enough to hold shape. Remove and cool, stirring often. Pour chocolate into pie crust and chill. Beat egg whites with cream of tartar; add sugar slowly. Spread meringue edge to edge over pie. Toast under broiler. Watch closely.