Crock Pot Mississippi Crack Chicken Sandwiches

3 lbs. Chicken Breast
8 oz. cream cheese
1/2 stick butter
two 1 oz packets dry ranch dressing
one 1 1/4 oz au jus seasoning dry mix packet
1/3 cup sliced pepperoncinis ( plus more for serving)
12 hamburger buns

1- Place chicken into the slow cooker and top with cream cheese, butter, ranch, and au jus seasoning and pepperoncinis.
2- cook on high for 4 hours, or until chicken is tender and easily shredded. ( alternatively, cook on low 6-8 hours)
3- Shred chicken, add back into the crock pot and stir to cover chicken with sauce.
4- Serve on hamburger buns with additional pepperoncinis.