Ultimate Labor Day Burger

Ingredients

• 2 tablespoons vegetable oil
• 1 red onion, chopped
• 2 cloves garlic, chopped
• 1 1/2 tablespoons chili powder
• 3/4 cup ketchup
• 1/4 cup apricot preserves
• 3 tablespoons yellow mustard
• 3 tablespoons apple cider vinegar
• 1 tablespoon soy sauce
• 1 tablespoon Worcestershire sauce
• 1/2 cup water
• 2 1/2 pounds ground beef chuck
• salt, to taste
• pepper, to taste
• 1 red onion, sliced into rings
• 1 tablespoon vegetable oil
• 6 slices Monterey Jack or pepper jack cheese
• 6 sesame seed hamburger buns
• 2 avocados, sliced