Prepare the dressing by combining the vinegar, mayonnaise, sugar, pepper, and salt in a bowl. Mix well.
Add the minced onion and stir.
Combine the broccoli and the dressing. Gently toss.
Crumble the bacon and add to the bowl with broccoli. Add the cashew and cheese, as well. Continue to toss gently until all the ingredients are well belended.