Shake Shack shared a step-by-step tutorial to make their iconic cheese sauce in their Shake Shack at Your Shack series. To recreate it entirely, you’ll need American cheese, cheddar cheese, canola oil, white wine vinegar, jalapeño, onion, salt, peppercorns, heavy cream, and white wine. Grease a pan with canola oil. Sauté onions, jalapeño, peppercorns, and salt. Once…