Homemade mayonnaise may sound intimidating, but an easy process puts this rich and customizable condiment at your fingertips. Many types of mayonnaise, from spicy to sweet, dress up everything from sandwiches to vegetables to meats. Horseradish adds a spicy zing that pairs perfectly with roast beef or smoked fish. You can also use horseradish mayonnaise in deviled eggs or as a dip for french fries. This basic recipe can be tweaked if you want to include some finely chopped parsley, dill or chives; just stir them in gently at the end.