Peel husks from tomatillos and rinse well, then slice them in halves.
On a foil-lined baking sheet, place tomatillo halves face down. Add the garlic cloves and broil for about 5-7 minutes to lightly blacken the skins of the tomatillos.
Add all ingredients in food processor and pulse until all ingredients are finely chopped and mixed.
Season to taste with salt.
Serve cool with tortilla chips or use as a marinade for fish.