Grilled Chili Flank Steak with Chipotle-Tomatillo Salsa

Step 1
Mix together garlic, brown sugar, chili powder, pepper, salt, and cumin until blended. Spread a heavy coating of the spice blend over both sides of flank steak and place in a large glass baking dish. Cover the dish with plastic wrap and marinate in the refrigerator for 4 to 8 hours.

Step 2
Preheat one side of an outdoor grill for medium-high heat and lightly oil the grate. Remove steak from the refrigerator and brush lightly with 1 tablespoon oil.

Step 3
Place steak on the hot side of the grill, cover, and cook for 5 minutes. Flip steak, cover, and cook another 5 minutes. Move steak to to cooler side of the grill, cover, and cook until desired doneness, about 2 to 5 minutes longer. Remove from the grill and let rest for 15 minutes.

Step 4
Meanwhile, preheat the oven to 400 degrees F (200 degrees C). Spread tomatillos and garlic cloves on a baking sheet and drizzle lightly with 1 tablespoon oil.

Step 5
Roast in the preheated oven until vegetables are soft, 10 to 15 minutes. Remove vegetables from the oven and cool slightly, about 5 minutes.

Step 6
Scoop tomatillos and garlic into the bowl of a food processor or blender. Add chipotle peppers and remaining 1 tablespoon olive oil; pulse until blended but still slightly chunky. Pour into a serving dish and let cool.

Step 7
Slice flank steak thinly against the grain and serve with salsa.