Cheese & Onion Sandwiches with HP Sauce

HP sauce is a sweet and tangy sauce that has a malt vinegar base blended with tomato, dates, tamarind extract and various other magical spices. It’s good on just about anything, but I particularly enjoy it on cheesy things like macaroni, omelets and, of course, grilled cheese sandwiches. And speaking of grilled cheese sandwiches, here’s a slightly different take on the American classic: grilled cheese with grilled onions on raisin bread. Sweet and salty. My favorite.