Natural peanut butter is delicious, but the initial stirring causes a mess. The minute you put in a spatula, the oil on top overflows everywhere. Instead, try this stirrer integrated into a screw-on lid ($10). With a few quick turns, the peanut butter is completely mixed with zero spillage. Plus, when you remove the stirrer from the gasket once you’re done, it automatically cleans the stirrer! These days, my husband actually sneaks in a new jar of peanut butter just so he can mix it up before I get to.
[This is a Cool Tools Favorite from 2007]