Creating a curry paste is a meticulous process that requires the right mindset, dedicated time, and some basic skills. While some authors dismiss the mortar and pestle as primitive tools, I hold a contrary belief. Although using a mortar and pestle requires effort, and it is unquestionably an ancient – almost primordial – method, curry pastes made with a mortar and pestle far surpass those produced with modern equipment.
Those seeking the flavors of bygone days know that there is no substitute for the old-fashioned manual pounding technique to truly unlock the essence of curry pastes. In this article, I explore the intricate aromatic and molecular transformations that occur through the stone-age art of pounding curry paste using a mortar and pestle.
This Masterclass is intended to give you, the modern Thai cook, the knowledge and tools to craft better curry pastes and the ability to have full control over flavor development in your curries, allowing you to create curries that are not only rounded, gentle and intense, but are mature and yet not overworked – and that therefore present an exquisitely complex taste.
Join me as I uncover the science behind the aromatic modifications and the intricate interactions that happen inside the mortar. I aim to provide a comprehensive understanding of the complex world of pounded pastes, from the release of oils and essences to the impact of moisture and the effect of heat, oxidation and the enzymatic reactions that bring forth the paste’s unique flavor identity.
The Art and Science of Pounded Curry Pastes
At first glance, this chicken and pineapple curry might seem ordinary or plain. After all, even though spicy curries with sour notes have been relished for ages, they feature repetitive patterns that could be viewed as common and perhaps uninteresting. However, with a calculated yet simple approach, this curry turns corners – quite literally – into a dish with a new flavor melody. It is thus referred to by its author, Mrs. Samaknantapol (Jeep Bunnag) (นางสมรรคนันทพล, จีบ บุนนาค), as laak laai roht, a “curry with manifold flavors (หลากหลายรส)”.
The type of chilies – fresh, dried or rehydrated – and how they are processed into the curry paste have a significant influence on the dish’s flavor, color, aroma and heat profile. Fresh chilies inject an immediate, sharp spike of heat that rushes in with a piercing, punctuating intensity, a grassy aroma and fruity liveliness. Dried chilies, on the other hand, impart a subtle warmth alongside rich, earthy notes that gradually build up into a steady, lingering burn. The choice of the chili variety will also shape the curry’s flavor. Through an informed selection and processing of chilies, cooks can navigate between mild and spicy, fruity and earthy, and bright and mellow flavors, creating a complex and nuanced heart for their curries.
This water-based, spicy chicken curry is made with corn-yellow rendered chicken fat instead of coconut cream. Dark reddish-brown in color, this full-bodied and fatty beak-to-tail curry presents the chicken identity and personality in both a corporeal and tasty manner. Spices such as cardamom, nutmeg, mace and clove are added into the curry paste to temper the gamey-irony flavor of the offal and deodorize the meat, resulting in a luscious dish that is beautifully layered with textures and flavors.
Discovered in a memorial book for the funeral of SubLt. Soophoht Jeungpraphaa (ร.ต. สุพจน์ จึงประภา) (1925-1966), this beef and potato curry dish unites two distinct curry styles: Massaman curry, known for its sweet and warming complexity of dry spices, punctuated by the vibrancy of bitter orange juice; and gaaeng phet (แกงเผ็ด) spicy curry, dominated by a basil herbal identity. The recipe maintains a sense of traditional elegance despite the startlingly unusual culinary fusion; as these two cooking styles are woven together, their spiced comfort, earthy warmth, citrusy freshness, and cool herbaceous notes meld in a gentle refinement. Drawing upon familiar and novel elements, this curry is both comforting and stimulating.
Massaman curry typically presents as a deep, rich dish. Its unique flavor profile is derived predominantly from a range of dry spices that point to its Persian-inspired roots in Siamese cuisine, along with a curry paste that exudes a sense of freshness. The dried chilis are roasted to deepen their color; the rest of the ingredients, such as the shallots, garlic and dry spices, are roasted too, individually, before being pounded into the paste. Conversely, the gaaeng phet (แกงเผ็ด) curry integrates dry spices more sparingly and is known for flavor qualities that are based on a phrik khing (พริกขิง) paste made of fresh aromatics and a basil herbal identity.
