Sliced Hanger Steak and Onion Hoagie

Sliced Hanger Steak and Onion Hoagie with Sambal-Dijon Spread (yes you can leave out the sambal)

INGREDIENTS
1 1/2 pounds hanger steak, trimmed
3 red onions, halved and sliced
4 tablespoons Dijon mustard
1 tablespoon sambal
1/4 cup mayo
Pickled jalapenos
4 hoagie rolls or ciabatta rolls, toasted
Kosher salt and freshly ground black pepper to taste
Canola oil for cooking
Favorite chips

INSTRUCTIONS
Season the hanger. In a large cast-iron pan over medium heat coated lightly with oil, sear the hanger and cook until brown on all sides and medium inside, about 10 minutes. When steak is halfway through cooking, add onions to start caramelizing them; season with salt. When steak is done, remove to a cutting board to let rest for five minutes. Continue cooking onions until well caramelized, about five minutes. In a bowl, mix together the Dijon mustard, sambal, and mayo. Slice steak, build sandwich: spread sambal-Dijon mixture on both halves of roll, add onions, pickled jalapenos and sliced steak. Slice sandwich on the bias and serve with your favorite chips.