Caprese Burger

1 tablespoon balsamic vinegar

1 tablespoon extra virgin olive oil

salt and pepper to taste

4 thick slices tomato

1 ⅓ pounds lean ground beef

1 tablespoon tomato paste

¼ cup chopped fresh basil

¼ cup grated Parmesan cheese

1 clove garlic, minced

¼ teaspoon black pepper

4 ounces fresh mozzarella cheese, sliced

4 hamburger buns, split

Whisk the balsamic vinegar, oil, salt, and pepper in a small bowl. Pour over tomato slices to marinate.

Preheat an outdoor grill for medium-high heat, and lightly oil the grate.

Mix ground beef, tomato paste, basil, Parmesan cheese, garlic, and 1/4 teaspoon pepper in a large bowl. Form beef mixture into 4 equal patties.

Cook on the preheated grill until the burgers are cooked to your desired degree of doneness, about 5 minutes per side for well done. An instant-read thermometer inserted into the center should read 160 degrees F (70 degrees C). Top each burger with mozzarella cheese; allow to melt. Serve on hamburger buns with marinated tomato slices.