For cleaner cuts, warm the knife under hot water and wipe between slices; pressing the mixture firmly prevents crumble, and slightly damp hands help it stick less while pressing. Swap creamy peanut butter for crunchy if you like added texture, or use almond or sunflower butter for a peanut-free option. If your mixture seems dry, add 1–2 tablespoons of warm honey; if too loose, mix in a small handful of extra cereal. For a stronger cookies-and-cream vibe, reserve some cookie crumbs to sprinkle on top before chilling.