Burgers with Blue Cheese and Onion Jam

By lorik

Ingredients

• 2 tablespoons butter
• 2 red onions, halved and thinly sliced
• 3/4 cup red wine
• 2 tablespoons balsamic vinegar
• 1/4 cup brown sugar, firmly packed
• 1 tablespoon fresh thyme, chopped
• 1 teaspoon salt, divided
• 1 teaspoon freshly ground black pepper, divided
• 1 1/2 pounds ground beef
• 1/2 cup bread crumbs
• 2 cloves garlic, minced
• 1 large egg
• 4 large hamburger buns
• fresh spinach leaves
• 4 ounces blue cheese, crumbled

Preparation

Step 1

Step 1
Heat butter in a skillet over medium heat. Add onions and cook until translucent, about 10 minutes. Add wine, vinegar, sugar, thyme, 1/2 tsp. each salt and pepper. Bring to a boil, then reduce heat. Simmer, uncovered, until liquid thickens, about 30 minutes. Remove from heat and allow to cool slightly.

Step 2
In a large bowl, add ground beef, bread crumbs, garlic, egg and remaining salt and pepper. Mix until thoroughly combined. Shape into 4 patties. Broil or grill until internal temperature reaches 160° F.

Step 3
Place each burger on one half of a hamburger bun. Top with warm red onion jam, spinach leaves and crumbled blue cheese.