Step 1

Puree the raspberries in a blender or food processor. Press the puree through a fine mesh strainer to separate the pulp from the seeds. Discard the seeds.

Step 2

Combine the puree with the sugar in a small saucepan over medium high heat. Stir frequently and cook until mixture darkens and thickens, about 10 minutes. Chill until ready to use.

Step 3

Add vodka and amaretto to a shaker with ice and shake until very cold, about 20 seconds. Stir in orange juice and club soda. Pour into iced glasses.

Step 4

Fill syringes with equal parts of the raspberry syrup and place in glasses before serving.