The ingredient this headline is most likely referring to is heavy cream. It isn’t a universal “chef secret,” though—many excellent mashed-potato recipes use milk, cream, or a combination. The real trick is using warm dairy and plenty of butter, while keeping excess water out of the potatoes.
🥔 Ultra-creamy restaurant-style mashed potatoes
Ingredients
- 2 lb (900 g) Yukon Gold or russet potatoes
- ½–1 cup heavy cream
- 6–8 tbsp unsalted butter
- Salt and black pepper
Method
- Peel and cut the potatoes into evenly sized pieces.
- Simmer them in well-salted water until completely tender.
- Drain thoroughly and return them to the hot pot for 1–2 minutes so excess moisture can steam away. This helps prevent watery or gluey potatoes.
- Meanwhile, warm the cream and butter together. Don’t add them cold to hot potatoes.
- Mash the potatoes with a masher or, for exceptionally smooth potatoes, pass them through a potato ricer.
- Gradually fold in the warm cream-butter mixture until you reach the consistency you like.
- Season generously with salt and add pepper to taste.
⭐ The details that make the biggest difference
- Don’t overwork the potatoes. Excessive mixing releases starch and can turn them gluey.
- Dry the potatoes after draining.
- Use warm cream rather than cold liquid.
- Yukon Gold potatoes naturally produce an especially creamy mash.
