Add 1 cup strawberries, the liquid stevia drops, and the water to a small saucepan and place over medium-high heat, bringing to a boil.
Lower heat to medium and let simmer for 10 mins.
While syrup is simmering, stir together the remaining strawberries and the stevia in the raw, refrigerating until ready to use.
Remove the syrup from heat and, using a wire sieve, strain the liquid into a small dish or bowl. Discard pulp.
Fill a large glass with ice, add 1 ½ oz. of vodka, 2 tablespoon of strawberry syrup, ¼ of the sweetened strawberries, the juice of one lime wedge, and top off with the sprite.