2
/3 cup mayonnaise
1
/2 cup spicy brown mustard (such as Gulden’s)
6
tablespoons chopped fresh tarragon
6
tablespoons chopped fresh chives
2
tablespoons (packed) golden brown sugar
2
tablespoons fresh lemon juice
2
teaspoons finely grated lemon peel
1
3 1/2- to 3 3/4-pound whole side of salmon with skin (about 1 1/2 inches thick at thickest part)