Prep the scallions

• Wash the scallions and dry them completely.
• Slice them and freeze flat in a freezer bag.

Prep the garlic

• Use pre-peeled garlic to save time.
• Mince it in a food processor.
• Flatten it inside a freezer bag and score grid lines into 1-tablespoon squares with the back of a butter knife or a chopstick.

Prep the ginger

• Peel and mince the ginger in a food processor.
• Flatten it inside a freezer bag and score into 1-teaspoon squares, smaller than the garlic since recipes usually call for less ginger.

Prep the onions

• Peel, wash and dry the onions before chopping so dirt and bacteria from the skin don't get dragged into the clean inside layers.
• Double-bag them since the smell can be strong.
• Note that freezing changes their cell structure so they will soften; use them strictly for cooked dishes.

Freeze and use

• Freeze all the bags flat.
• Use everything directly from frozen when cooking, no need to thaw first.