Boil the jalapenos in a pot of water for about 20 minutes, or until soft at medium heat
Take them out of the water and place aside.
Place the garlic cloves in the hot water for 2 to 3 minutes, then take them out.
This is a technique for softening the garlic's sharp edge by lightly cooking it.
Let your jalapenos cool completely, then remove the stems and seeds with your hands.
Place all the ingredients in an electric blender, leaving out the oil.
Turn on the blender and grind the jalapenos for a few seconds, then slowly drizzle in the oil until you have a lovely green emulsion.
Don't make this salsa too thick at first; it will thin out a little after being chilled.
When you take it out of the fridge, it should still be slightly liquid.
Notes
Roast your jalapenos under a broiler, on the stove, or on the grill for a smoky flavor. Allow cooling before removing the stems, seeds, and the majority of the skin. Continue with the recipe using charred jalapenos. This creates a slightly smoky green sauce with flecks of black charred bits for color.
Use soybean oil. in place of sunflower oil. Light olive oil also works well for heart-healthy oils. However, a strongly flavored olive oil will be overpowering in the salsa and give it an odd aftertaste.