The Russet Burbank specifically has high solids and low moisture, and it ideal for gnocchi. Reds are too waxy, the starch cells will turn gluey when moisture is added. The Yukon Golds can work, but often cost 3-4 times more than a russet and also have a medium solids or moist profile.
Different Types of Potatoes
When buying potatoes, this is what you dont want to buy: potatoes with damaged skin, greenish potatoes (when they turn green, they can be toxic), potatoes that have a black tinge or mold.
Potatoes come in different colors with a yellow, red, or purple outer skin or with white, yellow, red, or even blue flesh. However, the most important quality for culinary purposes is its density, in other words, the amount of total solids (starch, sugar, fiber, protein, salt) compared to the amount of water. Some qualities are best for certain dishes and not great for others.
Mealy or starchy potatoes are high density potatoes and have high levels of starch. These potatoes are great to make baked potatoes or potato puree (and, therefore, gnocchi!). When they are cooked, they become soft. When they are boiled, they tend to fall apart. Mealy varietals are usually large (like Russet or Idaho potatoes).
Waxy potatoes are low density potatoes and they have low levels of starch. When boiled, these potatoes dont fall apart and remain somewhat hard in texture. Waxy varietals tend to be small (like Yukon Gold potatoes).
There are also potatoes that are somewhere between mealy and waxy, with medium levels of starch and medium density. They can be used in many different recipes but this all-purpose quality makes them actually not great for any dish.
Choosing the Right Potatoes for Gnocchi
The first step when making potato gnocchi is choosing the right potatoes. There are many different types and varieties and not all potatoes make great gnocchi. You also want to choose potatoes that are all of the same size so that they cook uniformly.
POTATO GNOCCHI That’s PERFECTLY TENDER Every Time
FAQ
Why are russet potatoes best for gnocchi?
Which type of potato best for gnocchi?
Is it better to boil or bake potatoes for gnocchi?
Are starchy or waxy potatoes better for gnocchi?