#1 Heat grill to medium heat and heat oven to 400°F. #2 Place bacon in single layer in shallow pan. Bake 5 min. (Bacon will only be partially cooked. Do not cook until crisp.) Remove bacon from pan drain on paper towels. #3 Cut deep lengthwise slit in each wiener, stopping 1/2 inch from both ends and being careful to not cut all the way through to bottom of wiener. #4 Insert 2 Singles strips into each slit. Wrap 1 bacon slice tightly around each wiener secure with wooden toothpicks. #5 Grill 5 to 6 min. or until bacon is crisp and wieners are heated through, turning occasionally and adding buns, cut sides down, to the grill for the last few minutes to grill until lightly toasted. #6 Remove and discard toothpicks from wieners. Place wieners in buns top with ketchup and mustard.