Cooked: Halve 2 large or 5 small tomatoes and place cut side down on a spray greased sheet pan. Do the same for 2 or 3 serranos. Do the same for 4 tomatillos. Put one large clove garlic, unpeeled, on the tray. One lemon, but face up. Place under the broiler until the tops are charred.
Peel the loose tomato skin and tomatillos from the fruit. Peel the garlic. Add the tomato, tomatillos, garlic, peppers to a food processor or blender. Squeeze in the charred lemon juice. Add a big pinch of salt, 2 tsp. chili powder, and 1 tsp. cumin.
Pulse the food processor/blender until the fruit is a mash, but not a puree. Cook in a saucepan just to the boil and add to the jars. Hot water bath 10 minutes.