Mastic (Mastiha / Mastika)
What it is
Not a leaf herb but an aromatic tree resin, included as a herb-spice for its seasoning role. Mastic is the crystallized sap ("tears") of the mastic tree (Pistacia lentiscus var. chia), a small evergreen of the cashew family, grown almost exclusively on the Greek island of Chios. It appears as small, brittle, translucent pale-yellow crystals, ground to powder before use.
How it's made
Cultivators score the bark of the tree; the resin weeps out, hardens into "tears" on the ground (traditionally on swept, lime-dusted earth beneath the trees), and is collected, cleaned, and sorted by hand — a labor-intensive process that has earned Chios mastic Protected Designation of Origin (PDO) status. The tears are frozen and pulverized (often with sugar) before being dissolved into recipes, since they're sticky at room temperature.
Flavor profile
Uniquely resinous and aromatic — piney, cedar-and-incense-like, with cool, slightly medicinal, faintly sweet notes reminiscent of fennel, pine, and frankincense. Used in tiny quantities; in excess it turns bitter and overwhelmingly piney. It also lends a distinctive chewy, stretchy texture to certain confections and ice creams.
Culinary uses
Ground fine and dissolved in, usually early, in small amounts. It flavors and gives the famous stretchy, chewy texture to Turkish/Levantine dondurma (mastic-and-salep ice cream) and Levantine booza (Arabic stretchy ice cream); perfumes Greek tsoureki (Easter bread) and Cypriot/Greek sweets, loukoumi (Turkish delight), and masticha liqueur; thickens and scents Middle Eastern milk puddings and rice dishes; and appears in Lebanese and Levantine baking and meat dishes. Used only in its dried resin form; there is no real substitute — its piney-incense aroma and texturizing effect are singular. Mahlab, another resinous-baking flavor, is sometimes used alongside but tastes entirely different.
Regional variations
Chios mastic is the benchmark and the PDO-protected source; the flavor is consistent because production is geographically concentrated. Usage spans Greek, Turkish, Cypriot, Lebanese, Syrian, and broader Eastern Mediterranean cooking — ice cream and sweets in the eastern Mediterranean, breads and liqueurs in Greece, milk puddings across the Levant.
Cultural & historical context
Mastic has been harvested on Chios for over two millennia and was a luxury good of the Byzantine and Ottoman empires — chewed as the original chewing gum (the word "masticate" descends from it), valued as medicine, and at times so precious that resin theft on Chios was punishable by death under Ottoman rule. Its near-total restriction to one island makes it one of the most place-bound flavors in the world — a true terroir spice.
Reference notes
Suggested slug: `mastic`. Tags: `resin-spice`, `cashew-family`, `texturizer`, `use-sparingly`, `terroir-pdo`, `chios`. Related ingredients: mahlab, salep, rosewater, orange blossom, sugar. Related cuisines: Greek, Turkish, Levantine, Cypriot. Suggested Cuisinopedia links: Dondurma, Booza, Tsoureki, Mahlab, Salep. Strong fit for a "terroir / single-origin ingredient" feature; tag `not-a-leaf-herb` for clarity in herb listings.