See Salmon Burgers recipe

For cole slaw:
1/3 cup mayonnaise
2 tablespoons cider vinegar
1 teaspoon sugar
1 teaspoon Dijon mustard
3 cups finely shredded cabbage
1 large carrot, shredded coarse
1 small red onion, sliced thin

Make cole slaw:
In a large bowl whisk together mayonnaise, vinegar, sugar, and mustard.
Add remaining cole slaw ingredients and salt and pepper to taste and toss to combine well.
Cole slaw may be made 4 hours ahead and chilled, covered.