Techniques
Prep
Tip
Beginner
under a minute

Plan for major volume reduction when caramelizing onions

Start with a large quantity of onions because they reduce dramatically during caramelization.

Caramelized onions shrink a lot as they cook down. The transcript notes starting with about 12 cups and ending with roughly 2 cups once fully caramelized.

The short version

  • Expect onions to reduce to a fraction of their starting volume

What goes wrong

Making too little and ending up with a tiny amount

Start with a larger volume than you think you need.

Why it works

Onions lose moisture and collapse as their structure breaks down, concentrating into a much smaller volume.

Put it to use

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