Blackened Tilaplia with Garlic & Lime Butter

So I get recipes from all over the place but this one is from my fiance from his Men's Health. It is Blackened Tilapia with Garlic & Lime Butter. I love tilapia and we keep a huge bag of individually frozen pieces, so it makes it very easy for us to pull out what we need. This recipe is pretty simple and full of flavor. Here is the recipe:

INGREDIENTS

2 tbls.  butter, softened at room temp.
2 tbls. chopped fresh cilantro
2 cloves garlic, finely minced
1 tsp. lime zest, plus juice of 1 lime
1 tbls. canola oil (I use grapeseed oil)
4 tilapia fillets (6 oz. each)
1 tbls. Blackening Spice

DIRECTIONS

Combine the butter, cilantro, garlic, lime zest, and lime juice in a small mixing bowl and stir to thoroughly blend.  Set aside.

Heat the oil in a large cast-iron skillet or saute pan over high heat.  Rub the tilapia all over with the blackening spice.  When the oil in the pan lightly smokes, add the fish and cook, undisturbed, for 3-4 minutes on the first side, until the spice rub becomes dark and crusty.  Flip and continue cooking for 1-2 minutes, until the fillets flake with gentle pressure from your finger.

Transfer the fish to 4 serving plates and immediately top each with a bit of the flavored butter.

Side Notes: When making the butter, I found it hard to completely mix in all of the lime juice. It is just not in the nature of butter to peacefully mix with lime juice. I just spooned the entire mixture (excess juice and all) onto the fish and it came out wonderfully. Personally I believe the mixture minus the butter would be just as good but you have to love butter!
Also Blackening spice is not something that is readily available and Men's Health did not include what goes into it; so here is a recipe for Blackening Spice:
2 tbls. paprika (smoked or sweet) 
1 tbls. salt
2 tsp. onion powder
2 tsp. garlic powder
2 tsp. cayenne
1 1/2 tsp. black pepper
1 tsp. dried thyme or oregano leaves

This recipe can be tweaked to your own liking.

Also as this is a Men's Health recipe and is good for you I have included the nutritional facts:

4 Servings
Calories:  300
Carbs:  5.4g
Protein:  32g
Fat: 14g (6 Sat)
Sodium:  510mg

I hope you enjoy this recipe. It is not time intensive at all and can be made in about 15 minutes. I also suggest washing this down with a nice margarita!