walnuts
Also known as: Walnut Pieces
A rich, slightly bitter tree nut with a distinctive wrinkled shape; eaten raw or toasted in baking, salads, and snacking. It's one of the higher-fat nuts, which makes freshness matter more than it does for most pantry staples.
Buying guidance
Smell before buying loose or bulk walnuts if possible -- their high oil content means they turn rancid faster than most nuts, and a rancid walnut tastes sharply bitter and paint-like rather than simply bland. Buying smaller quantities from a store with good turnover, or keeping them refrigerated or frozen, avoids this.
Substitutions
- Pecans -- the closest common substitute in baking, milder and sweeter with a similar richness.
- Almonds or hazelnuts -- less oily with a different flavor, but work for crunch; toasting brings out more flavor since they're more neutral raw.
- Pumpkin seeds -- nut-free option with similar crunch, though a distinctly different flavor.
Tips & common mistakes
Their high oil content means they toast much faster than they look done -- they can go from perfectly toasted to bitter and scorched within a minute of extra time, so pull them a little before they look fully finished and let residual heat carry them the rest of the way.
Storage
For longest freshness, keep them in a sealed container in the freezer rather than the cupboard -- their fat content means they turn rancid within weeks at warm room temperature but hold good flavor for most of a year frozen, with no need to thaw before chopping or toasting.