Brown Butter Reese’s Puffs Cereal Crunch Bars If you think classic Rice Krispies Treats are the ultimate nostalgic snack, get ready for a serious upgrade. We’re taking those chewy, pan-baked bars, swapping out plain puffed rice for the bold, peanut-butter-and-chocolate crunch of General Mills’ Reese’s Puffs Cereal, and loading them up…