Tartar Sauce
½ cup mayonnaise
1/3 medium onion, finely diced
1 dill pickle, diced
Splash of pickle juice
Dash of Worcestershire sauce
1 drop of mustard
If desired you can add about a teaspoon of chopped fresh dill, dill relish and/or a dash of tobasco. Also, I consider sweet tartar sauce a sacrilege so I always use dill pickles.
Thousand Island
2/3 - ¾ cup of mayonnaise
Approx ¼ cup Ketchup
Dash of Worcestershire sauce
1-2 drops taco sauce and/or tobasco
1 boiled egg, diced
1 tsp dill relish
1 drop of mustard
I like my thousand tangy, so I probably use more ketchup than that. These are just approximations, and you may have to fiddle around with the measurements to get a flavor blend and consistency you like. Just remember it’s easier to add more than it is to take away, so err on the side of caution.