Up North Grilling Spice Steak Sandwich

What a sandwich! Milford Spice Company’s Up North Grilling Spice really jazzes up this sirloin steak to make this perfect summer sandwich.

For the pickled onions:

1 cup distilled white vinegar
1 cup water
1 Tbsp granulated sugar
1 tsp kosher salt
1 medium red onion, halved and thinly sliced

For the steak:

Cooking spray
1 pound sirloin steak
2 Tbsp Milford Spice Company’s Up North Grilling Spice

For the sandwiches:

1/3 cup mayonnaise
1/4 cup whole-grain mustard
1 1/2 cups arugula
4 onion rolls, sliced in half lengthwise

Place the vinegar, water, sugar, and salt in a medium saucepan over medium-high heat. Bring to a boil, stirring occasionally to dissolve the sugar. Place the onion in a heatproof bowl and pour the pickling liquid over it; set aside while you cook the steak.
Arrange a rack about 4 inches from the broiler and heat the broiler to high. Line a rimmed baking sheet with aluminum foil. Coat a wire rack with cooking spray and fit over the baking sheet.
Pat the steak dry with a paper towel. Season both sides with the Milford Spice Company’s Up North Grilling Spice and place on the wire rack. Broil (the steak should be 1 to 2 inches from the broiler's heating element) for 5 minutes. Flip the steak and continue broiling until well-browned and charred at the edges, 4 to 5 minutes more for medium-rare, or 6 to 7 minutes more for medium.
Let the steak rest for 10 minutes on the rack.