It adds richness, saltiness, and a touch of sweetness.

Simply Recipes / Getty Images

My household is pro-butter.

My husband has always picked on me for my fondness for butter.

A peanut butter sandwich in progress, with peanut butter spread on a piece of bread by a butter knife

Simply Recipes / Getty Images

I realized thatbutter would also greatly improve the humble peanut butter sandwich.

The butter’s creaminess cuts through the peanut butter’s thick, sometimes chalky texture.

A block of butter sitting on a plate

Simply Recipes / Getty Images