Easy BBQ Flank Steak with Chipotle Mayo

½ cup soy sauce

½ cup olive oil

4 ½ tablespoons honey

6 cloves garlic, minced

3 tablespoons chopped fresh rosemary

1 ½ tablespoons coarsely ground black pepper

1 teaspoon salt

2 pounds flank steak

1 ½ cups mayonnaise

1 (7 ounce) can chipotle peppers in adobo sauce

Combine soy sauce, olive oil, honey, garlic, rosemary, pepper, and salt in a resealable plastic bag. Add the steak, and turn to coat with the marinade; press out excess air, and seal the bag. Marinate in the refrigerator for 30 minutes, or overnight for better flavor.

Preheat an outdoor grill for medium-high heat. Discard marinade.

Lightly oil the grate. Grill the flank steak for 7 minutes per side, or to desired doneness. An instant-read thermometer inserted into the center should read 140 degrees F (60 degrees C). Let stand for 10 minutes before slicing very thinly against the grain.

Drain the chipotle peppers reserving 1 teaspoon of the adobo sauce. Finely chop the chipotle peppers. Stir together the mayonnaise, chipotle peppers, and reserved adobo sauce in a medium bowl. Serve the sauce with the steak.