Walnut

What Are Walnuts?

The walnut (Juglans regia) is the hard-shelled fruit of a tree in the Juglandaceae family; the edible part is the wrinkled, high-fat kernel inside the shell. Anatolia is one of the tree’s natural ranges, and walnuts have been a familiar ingredient in Turkish cuisine for centuries.

Fresh walnuts are eaten during a short season, before their shells harden, while dried walnuts are available year-round as a long-lasting nut. They have a mildly astringent, rich, oily flavor.

Walnut Nutrition

Walnuts are high in fat but also rich in nutrients. One hundred grams of walnut kernels contain about 654 kcal, 15.2 g of protein, and 65.2 g of fat. A significant portion of this fat is omega-3 (ALA), a fatty acid that is uncommon among plant sources; walnuts also contain fiber and various minerals.

What Are the Benefits of Walnuts?

With their omega-3 fatty acid and fiber content, walnuts are among the nuts noted as part of a balanced diet. Research continues on their contribution to omega-3 intake from plant sources; portion control is important because they are calorie-dense.

This is general information; walnuts are a food, not a medical treatment. People with nut allergies are advised to be cautious.

How to Choose Walnuts

When buying walnuts in the shell, checking their weight is the most practical method; shells that feel light are generally empty or contain a dried-out kernel.

• In-shell walnuts should feel heavy and full in your hand; avoid ones that rattle or feel light.
• Walnut kernels should be a vivid cream-beige color; dark brown or black spots indicate rancidity.
• They should not smell moldy or of rancid oil; fresh walnuts have a mild, neutral smell.

How to Store Walnuts

Walnuts in the shell can be stored for months in a cool, dry, dark place; the shell protects the kernel to some extent from air and light. Shelled kernels turn rancid quickly because they are high in fat; they stay fresh for a few months in an airtight container in the refrigerator, and longer in the freezer.

Using Walnuts in the Kitchen

Walnuts are usually eaten raw or lightly toasted; toasting noticeably intensifies their aroma. They are used in a wide range of sweet and savory dishes, including baklava filling, cake and cookie dough, walnut sauce, and salad toppings.

How to Toast Walnuts

Toast walnut kernels in a dry skillet over medium heat for 2–3 minutes, stirring occasionally. Remove them from the heat when their aroma becomes pronounced and they change color slightly. Keep the time short, since overtoasting can make them taste bitter.

How to Make Walnut Sauce

Blend toasted walnuts with garlic, crustless bread, and olive oil to make a walnut sauce familiar in Black Sea regional cooking; serve it with fish and vegetable dishes.

Recipes Made with Walnuts

Popular recipes include walnut baklava, walnut cookies, walnut egg noodles, and salad with walnut sauce. Crushed toasted walnuts are also often used in soups and breakfast dishes.

Frequently Asked Questions

What are walnuts good for?

Walnuts are rich in omega-3 fatty acids, protein, and fiber, and are among the nuts featured as part of a balanced diet. They are a food and are not claimed to cure any disease.

How many walnuts should you eat per day?

Because walnuts are calorie-dense, a daily handful (about 5–7 shelled walnuts) is considered a reasonable portion. Since individual needs vary, consulting a dietitian is the healthiest approach.

Why do walnuts turn bitter?

The unsaturated fats in walnuts oxidize when exposed to air, producing a bitter taste. To slow this process, store walnut kernels in cool, dark, airtight conditions.

Should you choose walnuts in the shell or shelled kernels?

Walnuts in the shell stay fresh longer thanks to the shell’s protective effect, but they take effort to crack. Shelled kernels are convenient but more prone to turning rancid; choose according to how quickly you will use them.

Can you use the green outer shell of a walnut?

The green outer hull of an immature walnut is traditionally used for jam and some regional drinks, but its strong dye can stain hands dark. It is not widely used in modern cooking.