Heat oil.
Saute onion.
Add chicken and brown both sides in oil.
Remove chicken to plate and drain excess oil.
Pour in the chicken broth.
Stir in the ranch dressing mix powder.
Top with cubes of cream cheese.
Add chicken back in.
Cook on high 4 hours. I stirred mine every hour or so to help the sauce along and combine the cream cheese into the sauce. Don;t be worried if sauce looks funky, it will come together in the end!
Remove from sauce and shred chicken, discarding skin/bones.
Toss chicken and the remaining sauce with the penne.
Top with parsley and bacon.