Ingredients
- Sauce
- 1/4 cup packed light brown sugar
- 1/2 cup ketchup
- 2 tablespoons canned chipotle chiles in adobo sauce (about 3 chiles), plus 1 tbsp. sauce
- 1 tablespoon Worcestershire
- 2 tablespoons molasses
- 2 tablespoons orange juice concentrate
- 1 teaspoon minced garlic
- Burgers
- 1 1/4 pounds grass-fed ground beef
- 2 teaspoons each kosher salt and freshly ground black pepper, divided
- 1 red onion, sliced 1/4 to 1/2 in. thick crosswise
- 1 tablespoon vegetable oil, divided
- 4 slices Swiss cheese
- 4 sesame hamburger buns
- 4 slices ripe tomato
- 4 leaves butter or romaine lettuce
Description
Time 35 Minutes. You'll Have Plenty Of The Spicy, Tangy Sauce Left Over. Have It With Grilled Chicken Or Ribs.

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