Chocolate Pie
["1 (9-inch) baked pie shell", "1 1/4 c. sugar", "1/4 c. cornstarch", "1/2 tsp. salt", "1/2 c. cocoa", "3 eggs, separated", "3 c. milk", "1 1/2 tsp. vanilla flavoring", "3 Tbsp. butter", "1 (9-inch) baked pie shell", "1 1/2 c. sugar", "1/3 c. plus 1 Tbsp. cornstarch", "1 1/2 c. water", "3 egg yolks, slightly beaten", "3 Tbsp. butter", "2 tsp. grated lemon peel", "1/2 c. lemon juice"]
["This meringue will not be runny."]
["shell", "sugar", "cornstarch", "salt", "cocoa", "eggs", "milk", "vanilla flavoring", "butter", "shell", "sugar", "cornstarch", "water", "egg yolks", "butter", "lemon juice"]