Prepare the Dressing: In a large serving bowl, mix together the mayonnaise, orange juice, sugar, salt, and a dash of pepper until smooth.
Combine Ingredients: Add the coarsely chopped broccoli florets to the bowl with the dressing. Toss well to ensure the florets are coated evenly.
Add the Good Stuff: Next, add the orange chunks, dried cranberries, and sunflower seeds to the salad bowl along with the sliced red onion.
Toss to Perfection: Gently toss all the ingredients together until well coated in the dressing.
Chill and Serve: Cover the salad and store it in the refrigerator for at least 30 minutes to let the flavors meld together and serve chilled for the best taste!