Pound chicken to even 1/4 inch thickness, rub them with oil and season liberally on both sides (about 2-3 tablespoons of seasoning).
Heat a skillet to medium-high heat. Add 2 tablespoons olive oil to the pan and cook chicken for 3-4 minutes (or until it has a dark amber coloring on the underside).
Flip just once, reduce the heat to low. Add 2 tablespoons of butter into the skillet along with 2 teaspoons of minced garlic, allowing the garlic butter to melt into the chicken as it finishes cooking, about 5-6 minutes (or until internal temp reaches 165 degrees).
Remove chicken and place on a plate with tented foil to rest before slicing.
In the same skillet over medium heat, add in remaining butter and melt. Add in the rest of the minced garlic and saute for 1-2 minutes or until fragrant.
Stir in the heavy cream and 2-3 teaspoons of blackened seasoning. Bring to a low boil over simmer, allowing it to thicken, about 5 minutes.
While the sauce simmers, cook the noodles to al dente, reserving 1/3 cup of pasta water.
Add the parmesan into the alfredo sauce and stir until melted. Taste and adjust seasonings as needed.
Pour 1/3 cup of reserved pasta water into the alfredo sauce and stir. Add cooked noodles into the pasta, mix to combine and top with chicken. I like to add a sprinkle of cajun seasoning on top the noodles before serving.