Step 1

Trim the rhubarb stalks. Remove and discard the leaves. Wash the stalks under cold running water and scrub off any stuck dirt. Pat the stalks dry.

Step 2

Slice the rhubarb into 1/2-inch thick pieces. Spread the pieces out in a single layer on a baking sheet or freezer-safe tray. Place the tray in the freezer, somewhere it won't get bumped, until the pieces are frozen solid. This usually takes about 1 to 2 hours.

Step 3

Transfer the frozen pieces to a freezer bag or container, seal tightly, and label. Store in the freezer for up to a year.