Beef Burgers with Crunchy Sour Cream Onions

Vegetable Oil for Frying

buttermilk

sour cream

yellow onion, cut into 1 inch thick slices and separated into rings

flour

finely chopped chives or scallion greens

Salt and coarse black pepper

(I used my own ground mix of sirloin, brisket, and chuck marinated with thyme and Worcestershire)

lbs course ground sirloin beef

Worcestershire sauce

Salt and coarse black pepper

EVOO, for drizzling

Brioche Rolls or other burger rolls of choice

Chopped crisp lettuce, such as iceberg or romaine heart

(I used a chipotle spread and omitted the ranch)

buttermilk

sour cream

organic or low-sodium ketchup

large clove garlic, grated or pasted

tbsp, finely chopped mixed fresh herbs, such as chives and parsley

fresh lemon juice

Salt and coarse black pepper

Hot sauce,