This is a common “chef tip” style line, but it’s usually taken out of context.
What it’s really about
It refers to making mashed potatoes. Some recipes say “don’t add more milk or water” because:
- Too much liquid makes mash watery and gluey
- It can weaken the potato starch structure
- You lose the creamy, fluffy texture
What chefs actually recommend instead
To get creamy mashed potatoes:
- Use starchy potatoes (like Russet or Maris Piper)
- Add warm milk or cream slowly
- Use butter first, then liquid gradually
- Avoid over-mashing (overworking makes it sticky)
Important nuance
You can add milk or cream—just not randomly or excessively. Good mash is about balance, not avoiding liquid completely.
If you want, I can give you a foolproof “restaurant-style mashed potatoes” recipe that actually comes out fluffy every time.