In a bowl, use a fork to mash all the butter ingredients until lemon juice is well incorporated into the butter. Set aside.
Using a sharp slim knife, cut chicken breasts in half lengthwise keeping both halves equal in size and thickness. Carefully cut a into the side of the chicken breast as deep and wide without completely cutting it through creating like a pocket.
Stuff each chicken breast with 1 tbsp of the prepared Kiev butter then close the pocket. Do a little push over the top of the chicken breast to disperse butter. Pinch the opening to seal.
Season both sides of the chicken breast with salt and pepper.
Dredge chicken in flour, then dip in eggs making sure to get a good egg coating, then dip into the bread crumbs.
Heat pan with enough oil, fry the chicken in a single layer until golden brown.
Sprinkle cooked chicken with salt, garnish with parsley and squeeze lemon wedges over the top before serving.