Heat a medium sized sauce pan over medium-high heat. Combine all barbecue sauce ingredients in the pan.
Bring sauce to a boil, then reduce the heat to low, and simmer for 1-hour, until thickened.
Towards the end of the sauce simmering, begin preparing your chicken.
Barbecue Chicken
Heat a heavy bottom stainless steel skillet over medium-high heat. While pan is heating up, season chicken on both sides with kosher salt.
Once pan is hot, add a few tablespoons of a neutral cooking oil to the pan. Add as much chicken that will fit without crowding the pan (usually two breasts at a time). Cook for about 15-minutes, turning occasionally until chicken is cooked through (165℉ on an instant read thermometer), and golden brown. Repeat with remaining chicken until done.
Once chicken is cool enough to handle (about 20-minutes) use two forks or your hands to shred the chicken in to bite-sized pieces. Season with more kosher salt and black pepper to taste.
In the last 5-minutes of the chicken resting, turn the heat back on your pan to warm it back up. Return the shredded chicken to the pan, and cook for an additional 5-minutes until the edges begin to crisp. Transfer the chicken to a large mixing bowl and toss with approximately half of your barbecue sauce (about 1-cup) to evenly coat.
Barbecue Chicken Slider Assembly
Place a bread and butter pickle chip on the bottom half of each of your toasted brioche buns. Top with 2 - 3 tablespoons of barbecue chicken, then spoon another teaspoon of sauce over the top. Add your top bun and serve.