1. In a bowl, mix the 250g vanilla Greek yogurt with 5g sugar free cheesecake jello.
2. Take one Oreo cookie half (without cream), quickly dunk it in milk, then place it as the first layer.
3. Spoon a layer of the yogurt mixture over the dunked Oreo.
4. Take another Oreo cookie half, dunk it in milk, and place it over the yogurt layer.
5. Spoon another layer of the yogurt mixture over the second dunked Oreo.
6. Finish by sprinkling Oreo crumbles on top (from the remaining Oreo halves).