Combine 2 cups of frozen raspberries and 1 1/2 cups of water and bring to a simmer, mashing the berries against the sides of the pain to release their juices. Strain into a cup or bowl scraping the seeds with a spatula along the bottom of the strainer to extract all the juice.

Fill two standard size martini glasses with ice and water to chill.

In a shaker combine the Raspberry Juice, raspberry liqueur, vodka and lime juice over ice and shake a few times until ice cold.

Pour out the ice water from the martini glasses and dip the rims of the glasses in simple syrup then into pink sugar crystals. Divide the mixture between the two glasses and garnish with raspberries.