Recipe Idea: Make Your Own Homemade Seafood Cocktail Sauce In A Jiffy Hi, it's Lois at Recipe Idea Shop, telling you about homemade Seafood Cocktail Sauce. You can make it in about one minute using ketchup (catsup) and horseradish. That's right: two ingredients! It's SO easy. And tasty. If you keep the ingredients on hand,