Butter • Onion, chopped • Garlic, or 2 if you like, minced • Heavy Whipping Cream, at almost room temp • Flour • Sliced Mushrooms, or about 10 medium ones, thinly sliced • Cooked Ham, sliced • Italian Seasonig, or season to taste with Oregano and Basil • Black Pepper • Sweet Paprika • Salt. I usually don't need it, the salt in the ham diffuses into the sauce, that's enough for me