Brussels sprout slaw

Name: Brussels sprout slaw
Prep time: 20 min
Total time: 20 min
Cuisine: European
Ingredients: 200g brussels sprouts, trimmed and shredded; 1 small red onion, sliced; 1 carrot, sliced into thin strips or coarsely grated; ¼ red cabbage, cored and shredded; 1 tsp celery seeds; small bunch of chives, parsley or dill, roughly snipped or torn; 50g yogurt; 50g mayonnaise; 1 tsp mustard of your choice; 2 tsp apple cider vinegar or any other vinegar