Preheat the oven to 450 degrees.
Place the tomatillos, shallot, garlic cloves (skin on), and jalapeno on the baking sheet.
Place into the oven and roast for 10 minutes, tossing to coat all sides of the veggies until a bit charred and softened.
Remove from the oven and allow to cool completely.
Once the veggies are totally cool, place them all into a blender, making sure to remove the garlic skin first.
Add the avocados, cilantro, lime juice, pinch of cumin, and sea salt, to taste.
Blend until creamy and smooth.
Adjust seasonings and lime juice to suit your tastes, if needed.
Serve with chips. Enjoy.