Blue Marlin steaks, salted and with lemon pepper. Spritz with lime juice a few minutes before grilling.

Lime caper butter sauce, per steak:

3 T butter
1/4 red onion or 1/2 shallot, chopped. Sub in garlic scapes for part of this.
1/4 cup white wine
2 limes, juiced
1 T capers, drained

Chili/lime powder for serving.

Sautee the onions/shallots in the butter while grilling the marlin. When soft, add the lime juice and wine, reduce by half and add in the capers, continue reducing until no liquid remains. Serve on top of the marlin with chili/lime powder.

Based on recipes from http://www.citraminagroup.com/index.php/recipes/other-fish-recip... and http://www.seafoodmadness.com/recipe-wild-blue-marlin-lime-butte...