Pat chicken dry with a paper towel then cut into bite size pieces (about 3/4 to 1-inch). Place in a bowl, add the ranch seasoning mix and toss to coat.

Heat one tablespoon butter in a cast iron or stainless steel skillet over medium heat. Add half the chicken bites, leaving space in between. Cook for 3-4 minutes undisturbed or until golden brown (charred if using cast iron).

Toss/flip and cook the other side until golden brown and cooked through, about 2-3 minutes more. Transfer chicken bites to a plate. Melt another tablespoon of butter and cook the remaining chicken.

Reduce heat to low. Add remaining tablespoon of butter, the minced garlic and all the chicken bites back to the pan. Saute for 1-2 minutes more, until the garlic is fragrant, then remove from heat and toss with grated parmesan, the diced pepperoncinis and 2 Tbsp juice from the jar. Sprinkle red pepper flakes over top, serve and enjoy!