Cut two boneless skinless chicken breasts in half horizontally and pound them out thinly using a meat tenderizer or wooden rolling pin
In a wide, shallow bowl, combine 1/2 cup of all purpose flour with 1/4 teaspoon of salt, 1/4 teaspoon of black pepper, 1/4 teaspoon of garlic salt and 1/4 teaspoon of onion powder
Lightly coat both sides of each chicken breast in the flour mixture
In a large skillet, add 2 tablespoons of butter and 3 tablespoons of olive oil and place it over medium to medium high heat
Once the butter has melted and the pan is warm, add the chicken leaving a little space in between each piece
Brown both sides of the chicken and then transfer it onto a paper towel lined plate and set aside
Carefully drain any excess olive oil from the skillet and return it to the stovetop over medium heat
Add 2 tablespoons of butter and 3 cloves of finely minced garlic into the skillet
Cook for 60 seconds, stirring constantly, until the garlic is fragrant and all of the brown bits have been scraped up
Add 1 1/2 cups of chicken stock, 1 cup of heavy cream and 1/4 of freshly squeezed lemon juice to the skillet and bring to a simmer
Start to boil a large pot full of water for the pasta
Add 1 1/2 tablespoons of cornstarch to the remaining 1/2 cup of chicken stock and stir until smooth
Add the cornstarch and chicken stock into the simmering sauce and stir to combine
Continue to simmer the sauce as you boil the pasta according to the directions on the box *Don't forget to add a big pinch of salt to the boiling water before you add the pasta!
Drain pasta and transfer it into the sauce
Add 2 tablespoons of capers and toss to coat the pasta generously
Add a portion of pasta and one chicken breast to each plate
Garnish with thinly sliced lemons and finely chopped parsley