This is the best tartar sauce you will ever have for your seafood. I use it for fried oysters and crab cakes.
1/2 tsp lemon zest
1 Tbsp of fresh lemon juice
1/3 cup mayonnaise
1/4 cup finely chopped green onions
1/2 tsp English Style dry mustard (I use Coleman's Mustard)
In a small bowl, stir together the mayonnaise, green onions, dry mustard, lemon juice and zest. Refrigerate at least 10 minutes or until ready to serve.