By CostcoFan | Updated August 2026 Top store-bought pick: Kirkland Signature Organic Peanut Butter, 2 × 28 oz · Item #555000 · $9.99 (9/10) We go through a serious amount of peanut butter in this house, and over the years I’ve tried just about every Costco peanut butter (and almond butter) they carry. This is … Read more