Grilled Steak & Horseradish Sandwich (Print Version)

# Ingredients:

→ Marinated Steak

01 - 3 pounds skirt steak
02 - ¼ cup plus 2 tablespoons olive oil
03 - 2 tablespoons kosher salt
04 - 1 tablespoon black pepper
05 - 2 teaspoons smoked paprika
06 - 2 teaspoons cumin
07 - 5 garlic cloves, smashed
08 - 2 teaspoons dried oregano
09 - ½ teaspoon cayenne

→ Horseradish Mayo

10 - 1¼ cups mayonnaise
11 - 1 tablespoon horseradish
12 - ½ teaspoon kosher salt
13 - ½ teaspoon black pepper
14 - 2 tablespoons chopped chives

→ Assembly

15 - 1 large red onion, sliced ½ inch thick
16 - 4 ciabatta buns, toasted
17 - 4 red leaf lettuce leaves

# Instructions:

01 - Preheat grill to 425°F using indirect heat. Blend ¼ cup olive oil with seasonings in food processor for 30 seconds until smooth. Coat steaks with marinade and rest 20 minutes at room temperature.
02 - Toss sliced onions with remaining oil. Grill over direct heat 3-4 minutes until tender, moving to cooler side if cooking too quickly.
03 - Grill steak 2 minutes per side, then move to indirect heat and cook covered 5 minutes for medium. Rest 5 minutes before slicing against the grain.
04 - While steak rests, mix mayonnaise, horseradish, salt, pepper and chives until smooth.
05 - Spread mayo on both sides of toasted buns, layer with grilled onions, lettuce, and sliced steak.

# Notes:

01 - Always slice steak against the grain for tenderness
02 - Can substitute sirloin flap meat for skirt steak
03 - Start with less horseradish - you can always add more