Place your chicken breasts on a cutting board.
Using a sharp knife, slice each breast in half horizontally.
This will create four evenly-sized cutlets.
Pound the chicken cutlets to about 1/4 inch thickness.
Use a meat mallet for this.
Pat them dry with a paper towel.
Set up your breading station.
Put flour, beaten eggs, and a mixture of bread crumbs and Parmesan cheese into three separate bowls.
Dip each cutlet into the flour, eggs, and then the breadcrumb mixture.
In a large skillet, combine butter and olive oil over medium heat.
Cook each chicken cutlet until golden and crispy on both sides
This should take about 4 minutes per side.
For the sauce, deglaze the pan with lemon juice after removing the chicken.
Simmer for a couple of minutes until slightly reduced.
Drizzle over the chicken before serving.