Gruntburger - Lettuce Entertain You

Ingredients

• 4 (½ lb.) hamburger patties
• 4 ea. sesame seed hamburger buns
• 2 ea. Spanish onions thinly sliced
• 1 cup flour
• 1 tsp. black pepper
• 1 tsp. celery salt
• 1 tsp. granulated garlic
• 1 tsp. dry mustard
• 1 tsp. Kosher salt
• ½ tsp. cayenne pepper
• ½ tsp. ground thyme
• ½ tsp. ground oregano
• 1 qt. frying oil
• 1 cup mayonnaise
• ¼ cup Danish bleu cheese crumbles
• ½ cup buttermilk
• dash white pepper