Penne with Caramelized Onions & Radicchio
- 1 lb. penne or ziti pasta
- 1 large head radicchio
- 2 t. olive oil
- 1 jumbo onion, thinly sliced
- 1 T. balsamic vinegar
- ¼ tsp. Pepper
- 1 c. frozen peas, thawed
- ¼ c. crumbled ricotta or goat cheese
Cook and drain penne, reserving ¼ cup cooking water.
Meanwhile, cut radicchio lengthwise in half. Remove core, then cut crosswise into ½” slices. Set aside.
In 12″ skillet, heat olive oil over medium heat until hot. Add onion and cook until browned and soft, about 15 minutes, stirring occasionally.
Add vinegar, pepper, and ½ teaspoon salt; cook 1 minute longer.
Increase heat to medium-high; add radicchio and cook 2 to 3 minutes until wilted.
Add onion mixture, peas, and reserved pasta cooking water to penne; toss to mix well.
Serve, sprinkled with cheese.