Preparation Whisk together mayonnaise, 1 teaspoon lemon juice, chives, mustard, cayenne, and 1/4 teaspoon each of salt and pepper in a medium bowl. Stir together salmon, crackers, 3/4 cup zucchini, and half of mayonnaise mixture in another bowl. Add fennel and remaining zucchini and lemon juice to mayonnaise mixture in medium bowl and toss to combine slaw. Form salmon mixture into 2 (3-inch) patties. Heat oil in a small nonstick skillet over medium heat until hot, then cook salmon cakes, carefully turning once, until golden and salmon is just cooked through, about 6 minutes total. Serve with slaw.
Preparation Whisk together mayonnaise, 1 teaspoon lemon juice, chives, mustard, cayenne, and 1/4 teaspoon each of salt and pepper in a medium bowl. Stir together salmon, crackers, 3/4 cup zucchini, and half of mayonnaise mixture in another bowl. Add fennel and remaining zucchini and lemon juice to mayonnaise mixture in medium bowl and toss to combine slaw. Form salmon mixture into 2 (3-inch) patties. Heat oil in a small nonstick skillet over medium heat until hot, then cook salmon cakes, carefully turning once, until golden and salmon is just cooked through, about 6 minutes total. Serve with slaw.