Bacon Cheddar Broccoli Salad

head broccoli

to 8 slices cooked bacon, crumbled

raisins, optional

sharp Cheddar, grated

red onion, sliced very thin

mayonnaise

sour cream

white vinegar

teas celery seed

sugar (I only used a teaspoon)

halved cherry tomatoes

Salt and freshly ground black pepper