These are the Rubik's Cube inspired cakes created by French chef Cédric Grolet, who was rated the best pastry chef in 2016 by the Relais Desserts Association, which is a real association doing important work in the world.
Chocolate Dome Cake Tutorial - with chocolate glaze recipe (One tip for the glaze after making let it completely cool down before use (reheat to right liquid stage), since this will prevent a non-stick stage)
A white chocolate ball around a chocolate cake - Hot fudge is then poured on the top. As the fudge melts the outer casing (white chocolate), the shell breaks & reveals the chocolate cake hidden on the inside! Now that's talent.