Sirloin Burgers With Blue Cheese Mayo and Sherry Vidalia Onions

• 1 lb ground sirloin
• 12 cup crumbled blue cheese
• 14 cup canola mayonnaise
• 2 teaspoons chopped fresh thyme, divided
• 14 teaspoon hot pepper sauce
• 1 teaspoon black pepper, divided
• 18 teaspoon kosher salt
• 12 teaspoon extra-virgin olive oil
• 4 slices vidalia onions (1/4 inch thick)
• 2 teaspoons sherry wine vinegar
• 2 cups loosely packed arugula
• 4 (1 1/2 ounce) whole wheat hamburger buns, toasted
• cooking spray (for grilling)

1. Preheat grill to medium high heat.
2. Combine blue cheese, mayonnaise, 1 teaspoon thyme, and hot pepper sauce in a small bowl, and stir well.
3. Divide beef into 4 patties, shaping each into a 1/2 inch patty.
4. Sprinkle beef evenly with 1/2 teaspoon salt, and pepper.
5. Brush oil evenly over both sides of onion slices, and sprinkle with remaining 1/2 teaspoon pepper.
6. Place patties and onions on grill rack coated with cooking spray, cover and grill for 3 minutes on each side.
7. Set patties aside, and keep warm.
8. Place onion slices in a zip-top plastic bag and seal.
9. Let stand 5 minutes, and toss with remaining 1 teaspoon thyme, and vinegar.
10. Spread cut sides of buns evenly with mayonnaise mixture.
11. Arrange 1/2 cup argula on bottom half of each bun, and top with a patty, 1 onion slice, and bun top.

ground sirloin, blue cheese, canola mayonnaise, fresh thyme, hot pepper, black pepper, kosher salt, extravirgin olive oil, vidalia onions, sherry wine vinegar, arugula, whole wheat hamburger buns, cooking spray

Taken from www.food.com/recipe/sirloin-burgers-with-blue-cheese-mayo-and-sherry-vidalia-onions-458204 (may not work)