I made a quick lunch of some fish yesterday and had to make homemade tartar sauce for it.
Actually my favorite. A lot better , I think, than the store bought.
It is easy to make and I don't even measure anything.
Put some mayonnaise into a bowl. Just kind of eye it to how much you think that you will need.
Add a spoonful of relish and a squirt of mustard.
That is it. Stir it all up and add some black pepper.