Spaghetti Carbonara
["3 c. mushrooms with stems, sliced 1/4 inch (8 oz. by weight)", "6 Tbsp. shallots, minced finely", "1/4 c. rendered bacon drippings (preferable) or pure olive oil (optional)", "24 slices bacon (extra thick), precooked and sliced into 1/2-inch strips", "2 lb. cooked spaghetti, precooked, hot (1 lb. dry weight)", "4 Tbsp. pure olive oil", "3 c. light, hot Bechamel Sauce", "3 to 4 good grindings fresh ground black pepper", "2 tsp. parsley, finely chopped", "4 Tbsp. Parmesan cheese, freshly grated", "salt to taste"]
["Clean the mushrooms and slice vertically into 1/4-inch slices. Peel the shallots and mince finely.", "Set these items aside."]
["mushrooms", "shallots", "bacon", "bacon", "olive oil", "light", "ground black pepper", "parsley", "Parmesan cheese", "salt"]