Combine ingredients and knead to make the dough. Shape dough into a mass, then cover with plastic wrap and refrigerate for 30 Minutes.
Roll out the dough on a floured surface until it is 3 mm thick and cut into rectangles. Place the hazelnut cream in the center and cover with another rectangle. Seal pressing with your fingers; then crimp with fork.
On the Instant Vortex control panel, press Bake, set the time to 8 Minutes and the temperature to 375°F (190°C). Press Start.
When the time is up, allow cooling briefly before removing the pop tarts from the drawer. Then place them on a rack to cool completely.
For the frosting, mix the icing sugar with the cocoa and then add the milk. Spread over the pop tarts and add sprinkles. Let pop tarts rest.