Flank Steak without scallions balsamic

itemscope itemtype="http://data-vocabulary.org/RecipeIngredient"> 3/4 cup fresh cilantro 2 tablespoons slivered almonds, toasted 1 tablespoon chopped seeded[...]

itemscope itemtype="http://data-vocabulary.org/RecipeIngredient"> 1/2 teaspoon freshly ground black pepper 1/4 teaspoon salt 1 1/2 tablespoons olive oil,[...]

1 1 1/4-lb. flank steak Salt and pepper 1 tablespoon vegetable oil 3 tablespoons unsalted butter 2 red onions, cut in half lengthwise, thinly sliced crosswise[...]