dark rum mojito steak salad

I'm not sure where this recipe came from, but it sounds super tasty, and we have lots of different rums to try in it.

1 (8-ounce) top sirloin, fat trimmed
2 tablespoons olive oil
2 tablespoons fresh chopped mint
2 tablespoons sugar
1 ounce white rum (optional)
Juice of 1 lime
Salt and pepper
1 head Romaine lettuce, chopped
1 red bell pepper, minced
½ red onion, minced
1 cup corn cut off the cob
8 to 10 cherry tomatoes, halved

Dressing
½ cup light sour cream
3 tablespoons taco sauce or salsa
Juice of ½ lime
Salt and pepper

In a small bowl, whisk together 1 tablespoon of olive oil, mint, sugar, rum and juice of 1 lime. Pour over steak and marinate for 15-20 minutes.

Heat the remaining tablespoon of olive oil in a pan over medium-high heat. Season both sides of the steak with salt and pepper, and sear until golden- brown or desired doneness, preferably medium-rare or medium. Let steak rest and slightly cool.

In a large bowl, mix together lettuce, peppers, onions, corn and tomatoes. Thinly slice steak and toss with salad.

Mix all dressing ingredients together, and pour over salad. Serve immediately.