Place blueberries, tequila, liquor, lime juice and preferred sweetener in a blender and puree on high until smooth. Taste and add more sweetener if necessary.
Fill 2 glasses with ice. (If you like salt...take a lime wedge and run it along top edge of glass. Dip in salt then fill the glasses with ice.) Divide margarita evenly among glasses and garnish with lie wedges and blueberries if desired. Cheers!
Recipe by pretty plain janes at https://prettyplainjanes.com/2016/07/31/blueberry-margaritas/