- 2 pounds sweet potatoes, peeled and cut into chunks
- 3/4 cup buttermilk
- 1/4 cup chopped chives
- 2 teaspoons hot pepper sauce
- Salt and pepper
- 2 16 ounce strip steaks, at room temperature
- 2 tablespoons steak seasoning
- 1 tablespoon chili powder
- 1 tablespoon finely ground dark-roast coffee
- 2 tablespoons vegetable oil
- 6 tablespoons butter, cut into pieces
- 1/2 cup finely chopped curly parsley
- 1 small red onion, chopped
- 1 small red bell pepper, chopped
- 2 ears corn, kernels scraped off, or 1 1/2 cups frozen corn kernels
- 1 15 1/2 ounce can kidney beans, rinsed
- 2 tablespoons chopped fresh thyme
In a medium pot, cover the sweet potatoes with water and bring to a boil. Cook until tender, 12 to 15 minutes. Drain and return to the pot. Mash with the buttermilk, chives and hot sauce; season with salt. Cover to keep warm.
While the potatoes are working, heat a large cast-iron skillet over high heat. Rub the steaks evenly with the steak seasoning, chili powder and coffee. Add 1 tablespoon oil to the skillet, 1 turn of the pan, and spread it around with a folded paper towel. Add the steaks and cook, turning once, for 8 minutes. Turn off the heat, tent the skillet with foil and let rest for about 10 minutes, turning once halfway through.
While the meat rests, in a small saucepan, heat the butter until foaming. Stir in the parsley.
In a large skillet, heat the remaining 1 tablespoon oil over medium-high heat until smoking. Add the onion, bell pepper and corn and cook until browned at the edges, about 2 minutes. Stir in the kidney beans and cook until heated through, 2 minutes; season with the thyme, salt and pepper. Slice the steak against the grain and divide into 4 portions. Pour the parsley butter on top. Serve the steak with the succotash and sweet potatoes.