My good friend Juan is an amazing cook and gave me this recipe. I've added cilantro, green onion and a little bit of lime juice to make it taste just like the kind they made at the Mexican restaurants that I worked at in the past. Enjoy :)
Heat a pan to med heat. Rinse tomatillos and cut into quarters. Add tomatillos, stewed tomatoes (reserve the juice in the can for later) chopped garlic, onions, and chili peppers (I used 4 and it wasn't too spicy. Normally I'll add more because I love the heat but I was also making this for kids to eat as well) to the pan and let it cook for 20 mins or until the tomatillo skin feels soft.
Transfer everything in the pan into a blender and blend and add the stewed tomato juice so it mixes well and blend for 10 seconds or until everything is nice and mixed (salsa looking).
Pour salsa into a large bowl, add the chopped cilantro, water, squeeze of a lime wedge, salt and pepper. Let chill covered in the fridge for a few hours.