Steak with Sweet Potato Hash

Name: Steak with Sweet Potato Hash
Ingredients: 2 large sweet potatoes (about 1 3/4 pounds), cut into 1-inch chunks; 2 teaspoons packed light brown sugar; 2 teaspoons smoked paprika; Kosher salt; 1 1 1/4-pound boneless sirloin steak (about 1 1/2 inches thick); 3 tablespoons extra-virgin olive oil; 1 to 2 tablespoons chopped pickled jalapenos, plus 2 tablespoons brine from the can; 2 tablespoons unsalted butter, cut into pieces; 1 small yellow bell pepper, chopped; 1 bunch scallions, chopped; 1 tablespoon chopped fresh parsley