I use either one, whichever is available. At home, it's usually sweet because that is what I buy for potatoe salad and deviled eggs. I don't always use it, sometimes it's just mustard. Sometimes it's relish and mustard. Sometimes its relish, mustard and cheese. Sometimes it's cheese and mustard. Sometimes, if I have them, I add onions to any of the above mixes and sometimes, if it's there, I will add chili. The one constant is mustard and no ketchup.