Recipes Ingredients Meat & Poultry Beef Recipes Grilled Flank Steak and Asparagus with Chimichurri Butter By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on May 16, 2017 Print Share Share Tweet Pin Email Photo: Romulo Yanes Prep Time: 45 mins Total Time: 45 mins Servings: 4 In this take on chimichurri--a green herb sauce for grilled meats that originated in Argentina--we sub in softened butter for traditional oil. Ingredients 1 stick unsalted butter, softened 2 tablespoons minced shallot ⅓ cup packed finely chopped fresh flat-leaf parsley ⅓ cup packed finely chopped fresh cilantro 3 tablespoons red-wine vinegar Coarse salt and freshly ground pepper 1 pound thick asparagus, trimmed 2 teaspoons extra-virgin olive oil 1 pound flank steak, room temperature Directions Heat grill to high. Stir together butter, shallot, parsley, cilantro, and vinegar in a bowl; season generously with salt and pepper. Toss asparagus with 1 teaspoon oil; season with salt and pepper. Pat steak dry with paper towels, then rub with remaining 1 teaspoon oil; season with salt and pepper. Let stand 10 minutes. Grill steak, flipping once, until charred in places and a thermometer inserted into thickest part registers 125 degrees for medium-rare, 8 to 10 minutes total. Transfer to a carving board and slather with some of chimichurri butter; let rest 10 minutes. Meanwhile, grill asparagus, turning a few times, until charred in places and crisp-tender, 6 to 8 minutes. Thinly slice steak against the grain. Serve steak and asparagus, topped with remaining chimichurri butter. Print