
1 egg
3 tablespoons milk
2 slices white or whole wheat bread, torn into crumbs
1⁄2 pound lean ground beef
1⁄2 pound ground pork
4 cloves garlic, minced
1⁄2 teaspoon salt
1⁄4 teaspoon black pepper
1⁄4 teaspoon cayenne pepper, divided
2⁄3 cup pure maple syrup
1⁄2 cup apple juice
2 tablespoons soy sauce
1 tablespoon vinegar
1½ teaspoons cornstarch
1½ teaspoons ground mustard
Fresh thyme leaves (optional)