Westward Ho Flank Steak Sandwiches

Total Time: 1 hr 5 mins Preparation Time: 35 mins Cook Time: 30 mins

Ingredients

• Servings: 6
• 3/4 cup mayonnaise
• 1 -2 tablespoon prepared horseradish
• 1 tablespoon lime juice
• 1/2 teaspoon dried oregano, crushed
• 1 1/2 teaspoons dried oregano, crushed
• 1 1/2 teaspoons coriander seeds, crushed
• 1 teaspoon salt
• 1 teaspoon fresh ground black pepper
• 1 tablespoon butter
• 4 cups sweet onions, cut in 1/4-inch slices-about 2 onions (texas 1015 or vidalia)
• 2 garlic cloves, minced
• 1 (1 1/2 lb) beef flank steak or 1 (1 1/2 lb) boneless beef top sirloin steaks, cut 1-inch thick
• 6 small romaine lettuce leaves
• 6 sourdough rolls or 12 slices sourdough bread, toasted

Recipe

• 1 prepare horseradish sauce:.
• 2 in a small bowl, stir together mayonnaise, horseradish, lime juice and oregano. cover and chill.
• 3 in a small bowl, combine oregano, coriander, salt and pepper: set aside.
• 4 in a 12" nonstick or cast iron skillet, melt butter over medium low heat. add onions, garlic, and 2 teaspoons of spice mixture(half). cook, covered, for 13-15 minutes until onions are tender, stirring occasionally. uncover; cook and stir over medium high heat for 5-8 minutes more or until onions are golden. remove from skillet; set aside. wipe the skillet clean.
• 5 if using flank steak, score meat on both sides by making shallow cuts at 1" intervals diagonally across steak in a diamond pattern. rub steak on both sides with the remaining half of the spice mixture.
• 6 heat the same skillet over medium high heat until very hot. add steak and cook, covered, for 12-16 minutes or until meat is medium rare(145*f.), turning once. remove meat from skillet to cutting board; cover with foil. let steak stand 10 minutes.
• 7 thinly slice steak across the grain.
• 8 to serve, arrange lettuce leaves and steak on bottoms of rolls. top with onions, dollop with horseradish sauce. add roll tops. enjoy!