While the chicken rests, mix the balsamic vinegar and red pepper flakes into the rosemary oil. Season with pepper and salt. Drizzle over the arugula and gently toss. Divvy the arugula among plates and arrange 2 chicken thighs on each arugula salad and garnish with lemon wedges. Originally published June 10, 2016.☞ TESTER TIP: If you’re uncorking a bottle of wine to go with this, opt for pinot noir or Chianti. You won't be disappointed.