Surf n' Turf- Flank Steak and Prawns with a Salad of Grilled Romaine

For the steak:

2 to 3 pounds flank steak

4 cloves garlic, minced

1/2 yellow onion, minced

3 tablespoons brown sugar

1/2 teaspoon grated fresh ginger

1/2 cup Worcestershire sauce

1/2 cup soy sauce

1 tablespoon freshly ground pepper

3 tablespoons lemon juice

3 tablespoons olive oil

2 bay leaves

1 (12-ounce) bottle dark ale or stout

For the prawns:

1 pound fresh prawns, peeled and deveined

3 tablespoons olive oil

3 tablespoons lime juice

2 cloves garlic, minced

1 teaspoon sea salt

2 pinches hot paprika (or chili powder)

Salad:

2 tablespoons lemon juice

1/4 cup olive oil

1 tablespoon mayonnaise

1 teaspoon red wine vinegar

1 teaspoon Dijon mustard

2 heads romaine lettuce

1 sliced tomato, optional

1 slice red onion, optional

Salt and freshly ground black pepper