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What are Capers Made of? Unveiling the Briny Buds

3 min read

Capers are mentioned as a food as far back as 2,000 B.C. in the Sumerian Epic of Gilgamesh. But despite their ancient roots, many people still ask: What are capers made of? They are the unopened, immature flower buds of the prickly caper bush ($$Capparis spinosa$$), native to the Mediterranean region.

Quick Summary

This article explores the origin of capers, explaining they are the unripened flower buds of the caper bush, which are then preserved. It delves into the curing process and flavor profile that makes them a unique culinary ingredient.

Key Points

  • Origin: Capers are the unripened, immature flower buds of the caper bush, or Capparis spinosa, found primarily in Mediterranean climates.

  • Curing Process: The raw, bitter buds are made palatable and flavorful by being cured in either salt or a vinegar-based brine.

  • Distinct Flavor: The curing process gives capers their signature tangy, salty, and lemony flavor, resulting from a chemical reaction that releases mustard oil.

  • Caper Berries: The larger, olive-sized fruit of the same plant are called caper berries and have a milder flavor and softer texture.

  • Culinary Uses: Capers are a staple in Mediterranean cuisine, used in sauces, with seafood, and as a flavorful garnish.

In This Article

From Bud to Jar: The Journey of a Caper

The journey of a caper from a wild Mediterranean shrub to a flavorful condiment on your plate is a testament to traditional preservation methods. It begins with the caper bush, a sprawling perennial plant that thrives in dry, rocky environments.

The Caper Bush ($$Capparis spinosa$$)

The caper bush, also known as the Flinders rose, is a hardy, drought-tolerant plant with rounded, fleshy leaves and large, white-to-pink flowers. It is this resilience that allows it to flourish in the harsh climates of the Mediterranean, from Italy and Greece to Morocco and Spain. The buds must be harvested by hand before they have a chance to bloom, a labor-intensive process that contributes to their cost. This is a delicate process, as the buds are quite small, ranging from the highly prized, tiny non-pareils to larger sizes known as surfines and capotes.

Curing and Preservation

After harvesting, the caper buds are too bitter to eat directly. They undergo a curing process to transform their flavor and make them edible. This typically involves either salting or pickling:

  • Salt-Cured Capers: These capers are packed in coarse sea salt, which draws out moisture and mellows their flavor. The intense salinity is balanced by a distinct, earthy flavor. Before use, they must be rinsed to remove excess salt.
  • Brine-Packed Capers: This is the most common method seen in grocery stores. The buds are pickled in a salt-and-vinegar solution, which provides the classic tangy, briny flavor profile.

Caper Berries: The Ripened Fruit

If the caper bud is not picked, it will eventually flower and produce a larger, olive-sized fruit known as a caper berry. Caper berries are also pickled and are often served as part of an antipasto platter or in cocktails. While they come from the same plant, they have a different, milder flavor and a softer texture than the sharp, piquant caper bud.

The Unique Flavor Profile

Capers are known for their distinct, pungent flavor, often described as tangy, lemony, and salty. This characteristic taste comes from the release of a compound called glucocapparin during the curing process. This unique flavor makes them a versatile ingredient in many cuisines.

Flavor Comparison: Capers vs. Caper Berries

Feature Capers (Flower Buds) Caper Berries (Fruit)
Origin Unripened flower buds Ripened fruit of the caper bush
Taste Pungent, salty, tangy, lemony Milder, less intense flavor, similar to olives
Texture Firm, crunchy Softer, with small seeds inside
Size Small, pea-sized Larger, olive-sized
Use Case Garnishes, sauces (e.g., chicken piccata), dressings Snacks, cocktails, antipasto platters

Culinary Applications

Capers are a staple in Mediterranean cooking and can elevate a wide range of dishes. Their bright, briny flavor cuts through richness and adds a welcome punch of acidity.

  • Sauces: They are a key ingredient in sauces like spaghetti alla puttanesca and are essential for chicken piccata.
  • Seafood: They are famously paired with smoked salmon, lox, and cream cheese, as well as added to baked or pan-seared fish.
  • Salads: They add a zesty kick to salads, whether pasta, potato, or a simple green salad.
  • Condiments: Finely chopped capers can be added to tartar sauce, compound butters, or tapenade for an extra layer of flavor.
  • Garnish: Fried capers become crispy and make an excellent garnish for a variety of dishes.

Conclusion: The Tiny Bud with a Big Impact

In conclusion, capers are the result of a simple, yet transformative, process: the harvesting and curing of the unopened flower buds from the caper bush. This journey from a wild bud to a briny delicacy is what gives them their signature tangy, salty flavor and versatile culinary appeal. They may be small, but their distinct taste makes them a powerhouse ingredient that has graced kitchens and dining tables for centuries. Whether you prefer them salt-cured or brined, capers offer a simple way to add a burst of complex flavor to countless dishes.

For more detailed information on the caper plant and its cultivation, you can visit a horticultural resource like the University of Wisconsin-Madison Extension.

Frequently Asked Questions

Capers are the small, unripened flower buds of the caper bush, while caper berries are the larger, ripened fruits that form if the bud is left unpicked. Capers have a more pungent, tangy flavor, whereas caper berries are milder.

Botanically, capers are the flower buds of a plant, which are technically fruits, while caper berries are the plant's ripened fruits. In culinary terms, they are used more like a seasoning or condiment.

Most capers, especially those packed in salt, should be rinsed thoroughly under cold water to remove the excess salt. For brine-packed capers, rinsing can also reduce the overall salinity.

Some possible substitutes for capers, depending on the dish, include chopped green olives, finely diced pickles, or pickled nasturtium seeds, which offer a similar briny, acidic note.

Capers are salty because they are preserved in salt or a brine solution, which is the traditional method used to cure the bitter, fresh buds. This process is essential for developing their signature salty and tangy flavor.

Yes, capers are categorized by size, with smaller capers like 'non-pareil' generally being the most prized and expensive. Other sizes include 'surfines,' 'capucines,' and 'capotes'.

Capers have a distinctly salty, tangy, and lemony flavor with a floral tartness. They provide a unique, briny punch that can liven up many dishes.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.