Chicken Marsala with cheddar mashed potatoes!!

Had this while visiting Destin and had to go home and try to re-create it. I made mine with mashed potatoes but it is usually served with fettuccine Alfredo.

Chicken Marsala
Ingredients:
3 chicken breasts
salt & pepper
Evoo
8oz cremini mushrooms (remove stems and cut into quarters)
1 large yellow onion (sliced)
2 cloves garlic (minced)
1 1/2 cup Marsala wine
1/2 cup of chicken stock
1 tbs butter
1/4 cup heavy cream
1/2 cup of veggie oil
1 cup of flour
1 tbs Dijon mustard

Directions:
Step 1: Wash chicken and pat dry with paper towel, cut chicken into three pieces and season both sides with salt and pepper. Lightly dredge chicken in flour and shake off excess and set to the side.
Step 2: In a large saute pan, heat veggie oil to medium high. When oil is ready lightly brown chicken on both sides and set to the side when done.
Step 3: Add 1 tbsp of butter and 1 tbsp of Evoo to the pan and then add in your mushrooms and onions. Season with salt and pepper and saute until onions are translucent. Then, add in your garlic and cook for another minute. Add in your Dijon mustard, Marsala wine, and chicken stock and stir to incorporate. Season again with salt and pepper and add back in the chicken. And cook on medium heat for 20 to 25 min.
Step 4: Once chicken has been cooked through add in your parsley and heavy cream and let simmer on low for another 5 min.
Step 6: Start your mashed potatoes while chicken is cooking and serve chicken on top after its done.

Cheddar mashed Potatoes
80 to 10 golden potatoes
1/2 cup of chicken stock
Season salt
salt and pepper
1 cup garlic and herb cheddar cheese (cabot)
2 green onions chopped
1 tsp garlic powder
1 tsp onion powder
1/2 cup heavy cream
2 tbsp sour cream
2 tbs butter

Direction:
Step 1: Bring a large pot of water to a boil and add 1 cup of chicken stock and 1 tbsp of season salt to the water. Peel potatoes and add to the seasoned water. Cook until potatoes are completely done (mash-able).
Step 2: Drain potatoes but leave a little liquid in the bottom to help with mashing the potatoes.
Step 3: On low heat add the butter, sour cream, heavy cream, and the chicken stock and start mashing until smooth. Its ok to have a little texture. stir in your seasonings to incorporate.
Step 4: Add in your green onions and shredded cheddar cheese.
Step 5: Serve with chicken marsala.