Preheat the oven to 204 degrees Celsius. (400 degrees F)
Remove husks from the tomatillos and wash well.
On a parchment (wax) paper lined baking sheet put the chiles, garlic, onion and tomatillos. Season with a little olive oil, and salt and pepper, to taste.
Put on vegetables a rack about 1 or 2 inches from the heat, and cook, turning the vegetables once, until softened and slightly charred, about 5 to 7 minutes. Keep a close eye on them so they do not burn.
When cool enough to handle, squeeze the garlic pulp from the roasted garlic into your food processor and discard the skin of the garlics, and pull off the tops of the chiles, remove the seeds and peel peppers and place in the food processor, discard the skin. Squeeze the the tops of delicious roasted tomatillos and allow the internal tomatillo pulp to go into the food processor but discard the skin. Add all the broiled ingredients(tomatillos, Serrano chili, garlic and onion) to a blender along with the fresh cilantro, lime salt and pepper to taste and a bit of olive oil and puree.
Put the Roasted Tomatillo and Key Lime Cilantro Salsa aside. At this point you can put in refrigerator for later use, can the salsa or freeze it once it cools down.
Marinate chicken breasts with olive oil, fresh garlic, salt, pepper, paprika and a little lime zest and set in the refrigerator for at least 30 minutes up to 24 hours to marinade.
Grill chicken breasts over medium heat for about 4-5 minutes each side or until the juices run clear. (depends on how thick your chicken breasts are) We like to cut our chicken breasts lengthwise so they are thinner and cook quicker.
Put the Roasted Tomatillo and Key Lime Cilantro Salsa in a small sauce pan on low heat and add 2 hearty teaspoons of butter and drizzle in about 3/4 cup of soy cream and salt and pepper to taste.
Serve your sizzling grilled chicken with a drizzle of the Roasted Tomatillo and Key Lime Cilantro Salsa and bring a smile to your families' faces. Garnish with fresh cilantro and fresh limes as desired.