Chop broccoli into small florets into bite size pieces, dice onion into fine chunks, half the grapes.
Combine all other ingredients into mixing bowl and whisk until smooth.
Toss together broccoli, onion, grapes, broccoli slaw and combine with dressing.
Top with slivered almonds.
Cover and leave in fridge until ready to serve or eat right away. If you are not eating it the same day, leave dressing on the side until day of or salad will get soggy.