2 tablespoons balsamic vinegar
2 tablespoons extra-virgin olive oil (EVOO)
Salt and freshly ground black pepper
3 bunches arugula, thoroughly washed
Juice of 1/2 lemon
Parmigiano Reggiano shavings
2 tablespoons butter
1 tablespoons all-purpose flour
1 1/2 cups chicken stock
1/3 cup heavy cream or half-and-half
1/4 cup homemade or store-bought pesto
Heat a large skillet over high heat with a little drizzle of EVOO. Place chicken breasts between two pieces of plastic wrap. Using the bottom of a heavy pot or small saut pan, give each chicken breast a good smack to make them even thinner. Peel back the top layer of plastic wrap and drizzle the balsamic vinegar over top and season with a little salt and pepper.
Transfer the chicken to the hot saut pan, seasoned-side down, and cook on each side for about 2 minutes.
While the chicken is cooking, combine the arugula, with the juice of half a lemon, a drizzle of EVOO and a little bit of salt in a bowl. Remove chicken from the skillet and reserve on a plate while you make the sauce.
To the saut pan add butter and melt. Add flour and cook for about a minute or so. Whisk in chicken stock and cream and bring up to a simmer to thicken. Remove from heat and add the pesto to the skillet. Stir to combine. Pour pesto gravy over the chicken and then top with the arugula. With a peeler shave some Parmigiano over the greens, season with a little salt and pepper and toss to coat.