Broccoli Salad with Dill

2 lbs fresh broccoli, cut into florets

1-1/2 lbs fresh cauliflower, cut into florets

1 cup mayonnaise

1/2 cup sour cream

1 small onion, chopped

1-1/2 tsp dill weed

1/2 tsp salt 

In a large bowl, combine the broccoli and cauliflower; set aside.

Combine mayonnaise, sour cream, onion, dill and salt; mix well.

Pour over vegetables; toss to coat. Cover and chill 4 hours or overnight.