Spinach Gnocchi
["1 medium potato", "1/2 tsp. salt", "1 egg", "1 (15 oz.) can spinach, drained", "1 1/3 c. flour", "1/2 tsp. pepper", "grated Parmesan cheese", "2 Tbsp. butter", "1 onion, chopped", "1 c. whipping cream"]
["Boil potato until tender, cool slightly and mash.", "Stir in salt, egg, spinach and flour to make a stiff dough.", "(Add more flour if you need to.)", "Shape into 1-inch balls.", "Heat butter in a 10-inch skillet on medium heat.", "Saute onions; stir in cream and pepper.", "Heat to boiling, reduce heat and simmer 10 minutes, until thickened.", "Heat 4 quarts of water to a boil with 1 tablespoon salt.", "Add 1/2 of gnocchi.", "When they rise to top, boil for 4 minutes.", "Remove and drain.", "Repeat with other gnocchi.", "Mix into cream sauce and top with grated cheese."]
["potato", "salt", "egg", "spinach", "flour", "pepper", "Parmesan cheese", "butter", "onion", "whipping cream"]