Peanut Butter Pie
["2/3 c. sugar", "2 1/2 Tbsp. cornstarch", "1 Tbsp. all-purpose flour", "1/2 tsp. salt", "3 c. milk", "3 egg yolks, beaten", "1/2 c. peanut butter (creamy)", "1 (9-inch) pastry shell", "whipped cream or topping"]
["In saucepan, stir together sugar, cornstarch, flour and salt. Gradually add milk.", "Cook; stir over medium-high heat until thickened and bubbly.", "Reduce heat; cook and stir 2 minutes longer.", "Remove from heat.", "Stir about 1 cup of mixture into egg yolks.", "Return all to saucepan.", "Return to heat.", "Bring to a gentle boil, stirring constantly.", "Cook and stir 2 minutes more. Remove from heat; stir in peanut butter until smooth.", "Pour into pastry shell; cool.", "Cover and refrigerate.", "Garnish with whipped cream or topping."]
["sugar", "cornstarch", "flour", "salt", "milk", "egg yolks", "peanut butter", "pastry shell", "whipped cream"]