1 cup ketchup
1/4 cup packed brown sugar
2 1/2 tablespoons cider vinegar
1/2 teaspoon hot sauce
2 teaspoons vegetable oil
1 onion, chopped fine
2 garlic cloves, minced
2/3 cup Saltine crackers, crushed (about 17 crackers)
1/3 cup whole milk
1 pound 90-percent lean ground beef (see note)
1 pound ground pork
2 large eggs plus 1 large yolk
2 teaspoons Dijon mustard
2 teaspoons Worcestershire sauce
1/2 teaspoon dried thyme
1/3 cup finely chopped fresh parsley
  Salt and pepper