Pour boiling water over the broccoli florets, then rinse them in plenty of cold water. Set them aside on a tea towel and let them dry completely.If you prefer the broccoli lightly cooked, you can leave the florets in the boiling water for 2-3 minutes.
Fry the bacon in a pan until crisp, then leave it to cool on a little kitchen paper.
Mix the ingredients for the dressing and season to taste with salt and freshly ground pepper.
Toss the broccoli, red onion, raisins, bacon and sunflower seeds in the dressing and stir well to combine.