Combine 1/2 cup blue cheese, mayonnaise, 1 teaspoon thyme, and hot pepper sauce in a small bowl; stir well.
Divide beef into 4 equal portions, shaping each portion into a 1/2-inch-thick patty. Sprinkle beef evenly with 1/2 teaspoon black pepper and salt.
Brush oil evenly over both sides of onion slices; sprinkle with remaining 1/2 teaspoon pepper. Place the patties and onions on grill rack coated with cooking spray; cover and grill for 3 minutes on each side. Set patties aside; keep warm. Place onion slices in a zip-top plastic bag; seal. Let stand 5 minutes; toss with remaining 1 teaspoon thyme and vinegar.
Spread cut sides of buns evenly with mayonnaise mixture. Arrange 1/2 cup arugula on bottom half of each bun; top with 1 patty, 1 onion slice, and bun top.
These were so good! I didn't use the sherry vinegar though because I couldn't find it. I used balsalmic instead and it came out great. Blue cheese mixture was so good I could eat it by the spoonfull. I will definitely make again.
These burgers came out amazing! I've made the recipe as stated twice. I used grass fed sirloin, buttermilk blue cheese, and 365 brand wheat buns....served with pesto fingerling potatoes (Cooking light 2013) and steamed asparagus. This burger is a very sophisticated complex burger with layers of flavor from the tobacco to sherry vinegar onions and tangy blue cheese....yet so simple to prepare. For this reason, they will be our go to entertaining burgers- simple yet immensely flavorful and delicious! A crowd pleaser!
A great burger recipe! Make it even better by using 2/3 sirloin and 1/3 lamb. Here's a nice side: peel and cube (about 1/2 inch) sweet potato, wrap in foil with mascarpone, cinnamon, and cayenne pepper. Start on the grill a few minutes before the burgers.
Great burger! We had a rather small amount of blue cheese remaining so mixed it into the burger meat instead of letting it go to waste. Make sure you get sturdy buns (bakery department instead of bread aisle).
So I made this with Ground Turkey (97/3), reduced fat blue cheese and mayo and used butter and olive oil cooking sprays! Dropped the calories and fat in half while keeping all the protein. If you need a little healthier I'd highly recommend doing this, they were amazing. Girlfriend approved as well!
This is by far the best burger I have ever had, that was cooked at home. I used 1 tsp. of balsamic vinegar and 1 tsp. of white wine vinegar in place of the sherry vinegar, since my supermarket didn't have it. I also added a tomato slice to each burger, since the picture showed one. Wow very yummy!