Potato Bread
["1 1/2 c. all-purpose flour", "2 1/4 tsp. baking powder", "1/4 tsp. salt", "1/8 tsp. pepper", "6 Tbsp. butter or margarine, at room temperature", "1 1/2 c. mashed potatoes, chilled*", "4 scallions, sliced"]
["*Use leftover mashed potatoes or frozen or instant made without the butter and salt."]
["flour", "baking powder", "salt", "pepper", "butter", "mashed potatoes", "scallions"]