Method
1. Instead of using boiled potatoes, I prefer to use cooked potato flesh scooped from baked potatoes. Because they haven’t been cooked with water, the finished result won’t end up being wet. It takes a little more effort but the results are worth it. Alternatively, you could boil the potatoes, then dry them in a colander on a tray in the oven.
2. I mash my potatoes using a potato ricer to get smoother results.
3. Then gradually introduce hot milk, followed by an egg yolk and softened butter or olive oil.
4. Season to taste with salt and pepper.
