pickle the raisins
& onions in vinegar
& then add oil

source, 4 servings
dressing: 1/2 c raisins, 1/4 c cider vinegar, pinch salt, 1 T sugar, 1 T sesame oil, 3 T olive oil, 1/2 red onion, sliced; 2 cut up heads broccoli, 1 sliced apple, 2 chopped green onions, s&p, 1/2 c toasted nuts & seeds, 1 c sliced grapes
combine all dressing ingredients but oils, rest 10 minutes, add oils; add dressing to rest