Chocolate Ice Cream
["1 qt. whole milk", "2 egg yolks, beaten", "1/3 c. unsweetened cocoa", "2 Tbsp. all-purpose flour", "2 (12 oz.) cans evaporated milk", "2 Tbsp. vanilla extract", "1 egg, beaten", "2 c. sugar"]
["In heavy saucepan, combine first 6 ingredients.", "Cook until thickened.", "Add evaporated milk; bring to a boil.", "Remove from heat and cool.", "Add vanilla.", "Pour into the cylinder of an ice cream freezer; add enough milk to fill cylinder 3/4 full.", "Freeze according to manufacturer's directions.", "Yields about 2 1/2 quarts."]
["milk", "egg yolks", "unsweetened cocoa", "flour", "milk", "vanilla extract", "egg", "sugar"]