Run a lemon wedge around half the rim of a highball glass. Dip the rim into coarse white sanding sugar until evenly coated.
Fill a highball glass with ice.
Pour in the Sugarlands Sour Blue Raspberry Moonshine.
Add the lemonade and stir gently to combine.
Slowly pour the grenadine down the inside of the glass or over the back of a spoon. Let it settle naturally to create the red, white, and blue layered effect.
Garnish with a lemon wheel, fresh blueberries, and a mini American flag pick, if desired. Serve immediately and enjoy responsibly.