Rich Chocolate Pudding
["4 Tbsp. butter", "3 c. milk", "7 Tbsp. baking cocoa", "1/2 c. boiling water", "1 c. sugar", "1/4 c. cornstarch", "1/4 tsp. salt", "1 egg, beaten", "1 tsp. vanilla"]
["Melt butter in a small pan.", "Set aside.", "In a separate pan, warm milk.", "Stir cocoa and boiling water together to make a paste, then mix in melted butter.", "Combine sugar, cornstarch and salt and add to warm milk.", "Add the cocoa-butter mixture and egg.", "Cook over medium heat, stirring until thickened, 15 to 20 minutes. Don't let mixture boil.", "Remove from heat and mix in remaining butter and vanilla."]
["butter", "milk", "baking cocoa", "boiling water", "sugar", "cornstarch", "salt", "egg", "vanilla"]