Recently, I traveled up to Tomales Bay to sample BBQ Oysters at a little place called Hog Island Oyster Company. It’s basically a little shack on the waterfront, where you can pick your own oysters, grab a picnic table, and cook them over a charcoal grill. While I was there, I learned that the secret to their BBQ oysters is a mixture of horseradish cocktail sauce and barbecue sauce.