Start by setting your slow cooker, or crock pot, to low. Add in 8-10 boneless, skinless chicken thighs.
Add 1 packet of ranch seasoning, 1 tbsp chicken bouillon, ¾ cup chicken stock, 8 pepperoncini peppers (drizzle in juice from the jar for extra pickled flavor), and 4 tbsp butter. Blend together all of the chicken, liquids and seasonings until fully coated.
Cook on low for 6 hours or high for 3-4 hours.
When finished cooking, remove the chicken pieces from the crock pot and placed on a towel lined platter to cool. Shred the chicken either by hand with 2 forks or in a food processor if you have the attachment for it.
Preheat the oven to 350℉. While waiting for the oven to warm, blend together ¼ cup mustard with 2 tbsp butter and 2 tbsp of mayonnaise until smooth and creamy. This will be our Mississippi slider sauce ..and it’s my favorite part!
Shred ½ of the Monterey jack cheese and set aside.
Butter a 9” x 13” (or similar size) baking dish and lay out the bottom halves of the slider buns. Layer down the shredded chicken followed by a spoonful of mustard sauce. Top each slider with a generous amount of shredded cheese.
Melt 2 tbsp salted butter in the microwave or stovetop. Place the top of the bun on each slider and brush each bun with butter.
Place in the oven for 15 minutes or until the cheese is melted. Remove and allow to cool for at least 10 minutes before serving. Enjoy!