"These are the BEST Burgers! Made with a mix of ground beef and ground pork, caramelized onions, balsamic vinegar, chili powder and MORE...."
INGREDIENTS
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1 tablespoon butter
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1 medium red onion (thinly sliced)
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1 tablespoon brown sugar
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1 teaspoon minced garlic
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1 teaspoon chili powder
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1/2 teaspoon salt
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1/4 teaspoon black pepper
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1 lb lean ground pork
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1 lb extra lean ground beef
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1 egg
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1/2 cup fine seasoned bread crumbs (see above for gluten free options)
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2 tablespoons balsamic vinegar
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1 tablespoon worcestershire sauce
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Barbecue sauce for basting and toppings as desired