Lemon Sweet Potatoes
["4 lb. sweet potatoes, cooked and mashed", "3 Tbsp. lemon juice", "1/2 stick unsalted butter", "2 egg yolks", "salt and pepper to taste"]
["Combine all ingredients.", "Transfer to a buttered casserole dish.", "Brush with butter.", "Top with lemon slices.", "Bake for 45 minutes at 325\u00b0."]
["sweet potatoes", "lemon juice", "butter", "egg yolks", "salt"]