SHRIMP SAUCE
Makes about 1 cup.
Note: Although this is called a sauce, it is much more like a soft paste to spread on a tortilla or serve on top of beans. From "Oaxaca al Gusto," by Diana Kennedy.
• 8 oz. peeled, deveined shrimp
• About 1/2 cup water, divided
• 3 (or to taste) green chiles (jalapeño or soledad), roughly chopped
• 2 garlic cloves, roughly chopped
• 1/4 medium white onion, roughly chopped