Blueberry-Beef Burgers
Ingredients
1
Head of butter lettuce
1/2
cup
potato flour
1/3
cup
fresh or frozen and thawed blueberries
1
tablespoon
balsamic vinegar
2
tablespoons
Dijon mustard
1
tablespoon
Reduced sodium Worcestershire sauce
2
cloves garlic, minced
Freshly ground pepper, to taste
16
ounces
90%-lean ground beef