Sweet Potato Cobbler
["2 yams", "1 1/2 c. sugar", "1/4 c. butter", "1/2 tsp. salt", "1/4 tsp. allspice", "1 Tbsp. lemon juice", "pastry for double crust"]
["Peel and slice potatoes.", "Cover with water.", "Add lemon juice and cook about 10 minutes.", "Remove potatoes from water.", "Mix potato water and other ingredients; bring to a boil.", "Alternate potatoes and pastry in casserole dish.", "Pour boiling mixture over potatoes. Add top crust and brush with melted butter and sprinkle with sugar. Bake at 350\u00b0 for 30 minutes or until done."]
["yams", "sugar", "butter", "salt", "allspice", "lemon juice", "pastry"]