Rub a lemon wedge around the rim of a cocktail glass.

Dip the rim of the glass into sugar to coat it evenly.

In a shaker, add the raspberry vodka, sweet and sour mix, and grenadine.

Fill the shaker with ice and shake well until chilled.

Strain the mixture into the prepared cocktail glass.

Carefully pour the blue raspberry vodka over the back of a spoon into the glass. This will create a layered effect.

Add a lemon wedge to the rim of the glass.

Drop a few fresh raspberries into the drink for a festive touch.

Serve immediately and enjoy your patriotic 4th of July cocktail.