Steaks with Smoky Tomato Butter & Cipollini

I would not suggest pairing this steak with mashed potatoes; the combo would be too rich. You are better off serving it with greens that have a bitter bite—grilled radicchio or broccoli rabe, or dressed raw dandelion greens.

Flatiron steaks are cut from the shoulder, which is a tough part of the cow. It is also deliciously beefy, but for the best results you have to work the meat. We pound it with a heavy sauté pan or a meat mallet. The idea is to tenderize without pounding it too t