Hot Fudge Cake
["1 c. self-rising flour", "3/4 c. sugar", "2 Tbsp. cocoa", "1/2 c. milk", "3 Tbsp. melted butter", "1 1/2 c. sugar", "1/3 c. cocoa", "1 Tbsp. cornstarch", "2 c. hot water"]
["Mix the first 5 ingredients well.", "Pour into a 9 x 9-inch pan. Mix remaining ingredients well.", "Pour over batter.", "Bake at 350\u00b0 for 45 to 50 minutes.", "Serve with ice cream."]
["flour", "sugar", "cocoa", "milk", "butter", "sugar", "cocoa", "cornstarch", "water"]