Add chicken breasts, milk and ranch seasoning packet to your crockpot and stir. Put the lid on and bake for 3 hours on high heat.
Remove the lid and shred the chicken right in the crockpot. *
Add buffalo sauce, ranch dressing, cream cheese, shredded cheddar and half of the blue cheese and cook for 1 more hour - stirring halfway through.
You can either serve it straight out of the crockpot or put it in a bowl.
Sprinkle the remaining blue cheese on top followed by some chives.
Video
Notes
**If you're having a hard time shredding the chicken, the easiest work around is using a hand mixer to essentially rip apart each breast inside the crockpot. You could also transfer it to a stand mixer but I feel the hand mixer is much easier and just as effective.**If you find your dip too saucy, do not fret - simply leave the lid off the crockpot and keep the heat on low while it thickens up. It's actually kind of perfect if you're serving it hot out of the crockpot so it doesn't dry out.