Ingredient:

• 1/4 cup bread crumbs
• 1/4 cup whole milk
• 1 pound ground round (85/15)
• 1/2 cup finely chopped yellow onion
• 1 large egg, lightly beaten
• 2 teaspoons chopped fresh thyme, plus more for garnish
• 1 teaspoon kosher salt
• 1/4 teaspoon ground black pepper
• 1 tablespoon ketchup
• ½ teaspoon apple cider vinegar
• ½ teaspoon light brown sugar
• ¼ teaspoon Worcestershire sauce
• cooking spray