How To Shell Hazelnuts | Unlock Their Sweet Core

Hazelnuts can be shelled efficiently using various methods, including cracking, blanching, or roasting, each yielding distinct results for different culinary applications.

Bringing hazelnuts into your kitchen opens up a world of rich, earthy flavor, perfect for everything from delicate pastries to savory roasts. The initial hurdle for many home cooks is often the shelling process itself, which can seem daunting with their hard outer casing and sometimes stubborn papery skins. Approaching this task with a bit of knowledge and the right technique transforms it from a chore into a satisfying step in your culinary creation.

Understanding the Hazelnut’s Structure

Before diving into shelling, it helps to understand what you’re working with. A hazelnut, often called a filbert, is actually the fruit of the hazel tree. Its structure dictates the best approaches for extraction.

The Outer Shell

The most immediate barrier is the hard, woody outer shell. This shell protects the kernel inside from physical damage and moisture loss. It’s designed for durability, which means it requires a firm, controlled force to crack open without pulverizing the delicate nut within.

The Papery Skin (Pellicle)

Once the outer shell is removed, you’ll find the hazelnut kernel encased in a thin, somewhat bitter, papery skin, known as the pellicle. While edible, many recipes call for skinless hazelnuts to achieve a smoother texture and milder flavor, especially in baking or when making nut butter. Removing this skin often requires a different technique than cracking the shell.

Preparing Hazelnuts for Shelling

Proper preparation ensures a smoother, more efficient shelling process and better final product quality. Starting with good quality nuts is always the foundation for success.

Selecting Quality Hazelnuts

When purchasing unshelled hazelnuts, look for nuts that feel heavy for their size, indicating a plump kernel. Avoid any with visible cracks, holes, or signs of mold. A gentle shake should reveal no rattling, which can suggest a dried-out or shrunken nut inside. Freshness is key for optimal flavor and texture.

Initial Cleaning

Before shelling, a quick inspection and cleaning are beneficial. Brush off any loose dirt or debris from the shells. A dry cloth can remove surface dust. Washing unshelled nuts is generally not recommended as moisture can seep into cracks and promote mold growth during storage.

Mechanical Methods for How To Shell Hazelnuts Effortlessly

Mechanical methods rely on direct force to crack the hard outer shell. These are often the quickest ways to get to the kernel, though they may not always remove the inner skin.

Nutcracker Technique

A good quality nutcracker is the most common and often the safest tool for shelling hazelnuts. The design allows for controlled pressure, minimizing damage to the nut itself.

1. Place a single hazelnut into the jaws of the nutcracker. Position it so the pressure is applied across the widest part of the shell, avoiding the pointed ends.
2. Apply gentle, increasing pressure until you hear a distinct crack. The goal is to crack the shell, not crush the nut.
3. Carefully remove the cracked shell pieces and extract the hazelnut kernel.
4. Repeat the process for the remaining hazelnuts.

Mallet or Hammer Method

For larger batches or if a nutcracker isn’t available, a mallet or hammer can be used, though it requires a bit more care to prevent crushing the nuts.

1. Place a small handful of hazelnuts in a sturdy canvas bag or wrap them in a clean kitchen towel.
2. Lay the bag or towel on a hard, stable surface, such as a cutting board or concrete floor.
3. Using a rubber mallet or a small hammer, gently tap the nuts. Start with light taps and gradually increase force until you hear the shells cracking.
4. Periodically check the nuts to avoid over-crushing. The aim is to break the shells into manageable pieces for easy nut extraction.

For optimal freshness and to prevent rancidity, shelled hazelnuts should be stored properly. According to the FDA, nuts, due to their high oil content, can spoil quickly if not stored correctly, making airtight containers and cool, dark places essential for extending their shelf life.

Heat-Based Methods for Easier Shelling and Skin Removal

Heat can be a powerful ally in hazelnut preparation, not only aiding in skin removal but also enhancing the nut’s inherent flavor. These methods are typically applied after the initial hard shell has been cracked.

Roasting for Shelling and Skin Removal

Roasting hazelnuts serves a dual purpose: it brings out their deep, nutty flavor and makes the papery skin much easier to remove. The heat causes the skin to dry and separate from the kernel, making it brittle.

1. Preheat your oven to 350°F (175°C).
2. Spread the shelled hazelnuts in a single layer on a baking sheet. Avoid overcrowding, as this can lead to uneven roasting.
3. Roast for 10-15 minutes, shaking the pan occasionally to ensure even browning. Keep a close eye on them, as nuts can burn quickly. You’ll notice a fragrant aroma and the skins beginning to crack and loosen.
4. Immediately transfer the hot hazelnuts to a clean kitchen towel.
5. Fold the towel over the nuts and rub them vigorously together. The friction and residual heat will cause most of the skins to flake off.
6. Allow the nuts to cool completely before using or storing.

Blanching for Skin Removal (after initial cracking)

Blanching is a quick, water-based method specifically for removing the pellicle, often preferred when you want to keep the hazelnuts raw or lightly toasted later. This method does not crack the outer shell, so it’s used on already shelled nuts.

1. Bring a pot of water to a rolling boil.
2. Add the shelled hazelnuts to the boiling water and blanch for approximately 1 minute. You might see some skins start to loosen.
3. Immediately drain the hazelnuts and transfer them to an ice bath to stop the cooking process. This also helps firm up the nuts.
4. Once cooled, drain the nuts thoroughly and spread them on a clean kitchen towel.
5. Rub the hazelnuts vigorously within the towel. The skins should slip off easily. For stubborn skins, you might need to gently rub individual nuts between your fingers.
6. Ensure the blanched and skinned hazelnuts are completely dry before use or storage to prevent mold. You can air dry them on a baking sheet or use a low-temperature oven for a short period.

Post-Shelling Care and Storage

Once you’ve gone through the effort of shelling and potentially skinning your hazelnuts, proper care ensures they remain fresh and flavorful for your culinary endeavors.

Removing Stubborn Skins

Even with the best techniques, a few stubborn skins might remain. For small quantities, rubbing individual nuts between your fingers or using a small, stiff brush can help. For larger batches, a second pass with the vigorous towel rub, especially after a brief re-warming in a low oven, often does the trick.

Proper Storage for Shelled Hazelnuts

Shelled hazelnuts, due to their exposed oils, are more susceptible to rancidity than unshelled nuts. Air, light, and heat are their enemies. To preserve their delicate flavor and extend their shelf life, store shelled hazelnuts in an airtight container.

• For short-term use (a few weeks), a cool, dark pantry is acceptable.
• For longer storage (up to a year), the refrigerator is ideal.
• For extended freshness (up to two years), the freezer is your best option. Freezing does not significantly alter the texture or flavor of hazelnuts.

Culinary Applications for Shelled Hazelnuts

With your beautifully shelled and perhaps skinned hazelnuts ready, the culinary possibilities are extensive. Their unique flavor profile makes them versatile in both sweet and savory dishes.

Raw and Roasted Uses

Raw shelled hazelnuts offer a crisp texture and a mild, sweet flavor, perfect for adding crunch to salads, cereals, or yogurt. They can also be ground into a fine flour for gluten-free baking or used to make fresh hazelnut milk.

Roasted hazelnuts, with their deeper, more intense flavor, are excellent in pastries like tarts, cookies, and cakes. They are the star in classic gianduja and make a fantastic addition to granola or as a garnish for roasted vegetables and meat dishes.

Flavor Enhancement

Hazelnuts pair wonderfully with chocolate, coffee, and fruit flavors like pear and apple. In savory contexts, their earthy notes complement poultry, fish, and various cheeses. Toasting them just before use, even if they were previously roasted, can reactivate their aromatic oils, providing an extra burst of flavor and fragrance.