Mustard-Smashed Bison Cheeseburgers + Saucy Onions

 *Makes 4 Burgers

Ingredients

Fried Onions:

  • 2 onions (yellow, white, or red) chopped or halved and thinly sliced
  • 2 Tbsp extra-virgin olive oil

Secret Sauce:

  • 3 Tbsp mayonnaise
  • 1 Tbsp ketchup
  • 2 tsp sweet green relish
  • 1/2 tsp granulated sugar
  • 1/2 tsp white vinegar

Cheese burgers:

  • 1lb ground bison 
  • Kosher salt
  • prepared yellow mustard
  • 4 slices cheddar
  • 4 small, soft white hamburger buns (such as Wonder), warmed in the microwave
  • 4 slices tomato
  • 4 small leaves green leaf lettuce

Place the onions in a large nonstick skillet. Drizzle with oil. Cook over medium-high heat, stirring, for 5 minutes. Reduce the heat to a medium and continue cooking, stirring often, until the onions are nicely browned, about 25 minutes.

For the sauce, in a small bowl, stir together the mayonnaise, ketchup, relish, sugar, and vinegar. (makes about 1/4 cup.)

You can refrigerate the onions and sauce until needed. When you're ready to eat, put the onions and 2 tablespoons of sauce (or more/less to taste) in a small skillet and warm over medium heat. or microwave until warm. Or stir together and serve cold.

For the burgers, heat a large cast-iron or heavy skillet (or the flat side of a cast-iron griddle if you have one) over medium for at least 15 minutes.

Divide the meat into 4 equal portions and gently form loose (not compacted) balls. sprinkle the tops with salt. Squirt a generous dollop (about 2 teaspoons) of mustard on each ball. Place the balls 2 at a time in the hot skillet, mustard sides down. Cook undisturbed for 1 minute.

Using two metal spatulas, crisscrossed to give you leverage, quickly flatten each ball with a firm "smash" to form patties that are 4 inches in diameter and about 3/4 inch thick. cook for 2 1/2 minutes. Carefully flip the burgers, using one of the spatulas to scrape up any crusty brown bits with the meat. Top each patty with a cheese slice. Cook until the burgers are no longer pink inside and their juices run clear, or until a digital thermometer reads 160 degrees Fahrenheit, about 2 to 3 minutes.

Place 1 patty on the bottom half of each bun. Top each with saucy onions, tomato, lettuce, and ketchup (in that order). Cover with the cop halves of the buns. 

 That's it! Time to enjoy all of your hard work. If you enjoyed this recipe and want to find more recipes like these, then check out  "Buffalo Girl Cooks Bison" by Jennifer Bain on amazon at: https://amzn.to/3Rd6SsD

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