Step 1

Mix mayonnaise and Bar-B-Q Sauce in small bowl until well blended.

Step 2

Cover. Refrigerate until ready to serve.

Step 3

Mix flour, salt and pepper in large resealable plastic bag.

Step 4

Add onion; toss to coat well.

Step 5

Pour oil into deep fryer, large heavy skillet or saucepan, filling no more than 1/3 full.

Step 6

Heat oil on medium-high heat.

Step 7

Carefully add onion rings to hot oil. Fry 4 to 5 minutes, turning once to brown evenly, until onions rings are golden brown.

Step 8

Drain on paper towels. Set aside.

Step 9

Mix Seasoning, chili powder and brown sugar in small bowl.

Step 10

Shape ground beef into 4 patties.

Step 11

Coat surface of each patty evenly with the rub mixture.

Step 12

Grill over medium heat 4 to 6 minutes per side or until burgers are cooked through (internal temperature of 160∫F).

Step 13

Add cheese slices to burgers 1 minute before cooking is completed.

Step 14

Grill pickle slices 2 to 3 minutes per side or until grill marks appear.

Step 15

Toast rolls on the grill, open-side down, about 30 seconds, if desired.

Step 16

Serve burgers on rolls topped with grilled pickles, Crispy Onion Straws and lettuce. Serve with BBQ Mayonnaise.