Prepare the grill for direct grilling over a medium-hot fire, preferably a charcoal fire.
Finely chop the bacon with a knife so that it is similar in texture to the ground bison. Gently mix the chopped bacon into the bison. Use caution not to overwork the meat blend, or the texture of the finished burgers will not be as desirable. Divide the mixture into 6 equal parts and form into patties slightly larger than the hamburger buns. Recess the centers of the patties so that when they plump up they take on a flat profile (thank you Bobby Flay for the tip). Brush the patties lightly with olive oil and season generously with salt.
Let the burger patties rest for a few minutes while you prepare the buns and the Secret Sauce. For the sauce, whisk together all of the ingredients. For the buns, brush them generously with olive oil on the cut sides and season lightly with salt.
Grill the burgers directly over the fire until cooked to medium-well (170°F), about 4 minutes per side. It is important to cook to at least medium-well because of the bacon worked into the mixture. After the burgers have been flipped, top each with a spoonful of cold-packed cheddar cheese. (Note: cold-packed cheddar cheese has some of the mild “cheeseburger flavor” qualities of American cheese, but it is real cheese and has a bit more character.)
While the cheese is melting, lightly grill the hamburger buns.
Spread a little secret sauce and add a few pickle slices to the bottom half of each bun. Add the burgers and the top of the buns and serve. These burgers are incredibly flavorful – no additional condiments should be necessary.
Enjoy!