One of my all-time FAVORITE side dishes... it's so yummy, somewhat healthy (? LOL) and makes me want broccoli every day of the week if it's made like this! And KETO friendly!
Cut off raw broccoli so that it's just the small clovers of bite sized pieces.
Cut up 1 red onion into small bits. Add to broccoli.
In separate bowl, mix mayonaise, vinegar, sugar, salt and pepper to taste.