Line a baking sheet with aluminum foil and spray with nonstick cooking spray. Set aside.
Remove outer skin from tomatillos and place in a bowl of water. Rinse and rub off the stickiness off the tomatillos. Place on the prepared baking sheet.
Using gloves, cut the stems off all of the peppers, remove the seeds and cut each pepper in half. Rinse and place on the baking sheet, skin side up.
Place onion and garlic on baking sheet.
Broil on high until the skins on the peppers are blackened and blistery, turning a couple time during broiling. This should take about 10 minutes, give or take.
Once skins are blistery, remove the baking sheet from the oven and place tomatillos, jalapenos and serrano peppers into a Vitamix or blender.
Place poblano peppers into a large sealable baggie. Let sit for approximately 10 minutes, then peel the skin off the peppers and add to the Vitamix or blender.
Next, add garlic salt, Slap Ya Mama, cilantro, onion, garlic, 8 ounces of chicken broth and juice from one lime.
Blend until smooth and there are no chunks. Add more seasoning to taste, if needed.