Fillet boneless chicken breast. Pound breast with meat mallet until about 1/2 inch thick. Season both sides with blackening and pepper.
Boil water in large pot with a couple pinches of salt. Once boiling, add penne pasta and cook al dente.
Heat cast iron pan over medium heat until hot. Add 1 tablespoon of olive oil and 2 tablespoon butter. Once melted and hot, add chicken and cook until done, 6-8 minutes. Remove from pan and place in aluminum foil, lightly seal and set aside.
In same pan, add bacon and cook until done, but not crispy. Place on paper towel lined plate and pat with additional paper towel. Chop bacon and set aside.
Drain excess bacon fat, keeping about 1 tablespoon in pan. Add chopped onion and sauté for 6-8 min or until soft and golden. Add minced garlic and sauté 1 min. Add bacon and cook an additional 1 min.
Add wine to onion, garlic, and bacon and deglaze pan. Add ¼ cup butter and melt. Add in flour and mix well.
Turn heat to low. Stir in chicken broth, heavy cream, parmesan cheese, pepper and salt and let simmer until it starts to thicken.
Cut chicken into 1/2 inch strips. Add to pan and mix in well. Meanwhile, drain pasta and return to pot. Add chicken and sauce to pasta. Mix well, garnish with chives and serve.