A summer burger on the grill is great but with the addition of this special sauce and perhaps some melted American cheese - it's perfection. And the best part is that some teenager won't yell through a speaker and ask if you'd like to supersize it.
1/2 cup mayonnaise
2 Tbls. ketchup
1 Tbl. finely grated onion
1 Tbl. dill pickle relish
2 Tsp. adobe sauce from canned chipotle chilies in adobe sauce
1/8 Tsp. celery salt
1/8 Tsp. kosher salt
Combine all ingredients in a bowl and serve with burgers.
Recipe from Bon Appetit - June 2011