Melt the dark chocolate in a microwave or double boiler until smooth.
Using a spoon, coat the inside of silicone cupcake molds with melted chocolate. Refrigerate until set.
Whip together the whipped cream, mascarpone cheese, powdered sugar, vanilla extract, and strawberry puree until smooth.
Gently remove the hardened chocolate cups from the molds.
Fill each chocolate cup with the strawberry cream mixture.
Top with a fresh strawberry and chill until ready to serve.