For sauce, combine all ingredients; mix well. Chill. For salmon cakes, combine remaining ingredients except margarine; mix well. Shape to form 5 oval patties about 1-inch thick. Pan fry in margarine over medium heat 3 to 4 minutes on each side or until golden brown and heated through. Serve with sauce.
Variation: Substitute two 6-1/2-ounce cans chunk tuna in water, drained and flaked, for salmon. This light and colorful cucumber sauce, made with yogurt, is the perfect compliment to these golden brown salmon patties.