Bloom the gelatin in (1)water.
Combine the granulated sugar, invert sugar, and remaining (2)water in a small saucepan and heat to soft-ball.
In the bowl of a stand mixer fitted with the whisk attachment, whisk the cooked sugar mixture and bloomed gelatin on high until cooled and full volume.
Add the 50 g Prova Gourmet Madagascar Bourbon Vanilla Bean Paste and stream in the 60 g deZaan Holland Rich Terracotta 20/22% Dutched Cocoa Powder.
Pour the mixture onto a parchment-lined rimmed pan and let stand until set.
Cut into marshmallows of your preferred size and toss in deZaan cocoa powder of choice to coat.