6ozFeta blockbrine drained (crumbles are fine, too)
1/3cupExtra virgin olive oil
1tspKosher saltplus more for taste
1/2lbDry pastacooked and drained
1cupPasta waterreserved
⅛tspCayenne pepper
3tbspHeavy whipping cream
1/4cupGrated Romano cheese
Instructions
Preheat oven to 425°F / 220°C. In a large cast iron skillet combine cherry tomatoes, chopped onions, minced garlic, extra virgin olive oil, and salt. Toss to combine. In the center of the skillet on top of the vegetables, place your block of feta, or if using crumbles, dump them in the center, keeping them packed together. Roast for 35 minutes. Lower heat to 400°F / 200°C and continue roasting for 30 minutes. Tomatoes will burst and onions will char and caramelize.
Shortly after beginning the second roasting at the lower temperature, boil water seasoned with salt. Cook pasta for 10-12 minutes, then reserve 1 cup of the pasta water before draining. Return pasta to the pot.
When vegetables and feta are finished roasting, scrape them out of the cast iron skillet into the pot with the pasta. Add the pasta water, cayenne pepper, heavy cream, and Romano cheese, stirring to combine. Adjust with salt before serving. You will know when you've added the right amount of salt when you taste the heat from the cayenne and the sweet, acidity of the tomatoes.