Combine pork, diced chilis and chopped cilantro and mix until evenly distributed. Divide equally to make 4 patties with a diameter slightly bigger than bun.
Cut bottom crust from 2 additional heels. These will be center section of burger.
Mix mayonnaise and chipotle peppers with adobo sauce.
Heat BBQ or skillet on stove to medium high heat.
Cook patties on one side for 2 or 3 minutes until partially cooked. Season with salt and pepper and flip. Season second side with salt and pepper and top each patty with a ½ tablespoon diced onion. Continue to cook until each patty is 74°C internal (165°F).
In the meantime, build the buns as follows. On 2 heels plus 2 center heels, add 1 tablespoon sauce and top with 2 tablespoons shredded lettuce. On bottom heel, add 1 slice cheese. On middle section, add 3 pickled jalapeños. Then add 1 cooked pork patty to each bottom and middle section. Stack together and add top bun.
Enjoy!