For visual appeal, add a small dusting of cocoa powder or a few cacao nibs on top. Store the yogurt-peanut butter mixture in an airtight container in the refrigerator for up to 2–3 days. Keep bananas and chocolate chips separate until serving to preserve texture and appearance. If chia seeds thicken the surface too quickly, sprinkle them just before serving or pre-soak them in a tablespoon of water for 5 minutes.