The base. Place the broccoli florets and cauliflower in a very large bowl, and toss to combine.
Dressing. In a separate small bowl, whisk the mayonnaise, sour cream, salt, and sugar together until smooth.
Combine. Transfer the dressing mixture to the bowl of broccoli and cauliflower, and stir together with the broccoli and cauliflower until the vegetables are completely coated.
Cheese and bacon. Top the broccoli and cauliflower with the shredded cheese and cooked and crumbled bacon.
Stir. Fold in the cheese and bacon until evenly distributed.
Serve immediately, or chill until ready to serve.
Video
Notes
Storing leftovers: Cover the bowl tightly with plastic wrap and keep it in the refrigerator for up to 3 days.To make ahead: Prepare the salad up to 24 hours before serving. For the best results, leave out the shredded cheese and bacon and add that just before serving.Low carb/Keto/Sugar-free: Swap the sugar for the sweetener of your choice that measures 1:1 with sugar.