Use half-pound burgers. Top with smoked gouda.
http://ruhlman.com/2012/07/summer-is-for-hamburgers/
http://leitesculinaria.com/81320/recipes-best-burger.html
http://www.foodnetwork.com/recipes/alton-brown/burger-of-the-gods-recipe/index.html
Makes 2.
1 lb ground beef (80% lean, 20% fat)
1 tbs Worcestershire sauce
1 tsp salt
1/2 tsp black pepper
1/4 tsp garlic powder
Method:
Heat the grill to high temperature
Gently mix all the ingredients together without compressing them.
Loosely shape into patties - remember they will shrink horizontally, but become thicker as they cook, so make them a little wider than the bun.
Broil until nicely browned on one side, then flip. Remove when browned on the other side but still medium-rare inside, and immediate add the cheese so it melts in the remaining heat.
Burgers seem to get a lot of carryover heat, so if in doubt, undercook. Leave to rest for a couple of minutes.
Meanwhile slather the bun with mayonnaise (protects from juices making it go soggy), ketchup and pickles.