ingredient
Jaggery for watalappan: kithul, cane sugar and substitutions
Read palm-sugar labels, distinguish solid jaggery from treacle, and choose a watalappan sweetener without guessing at a universal swap.
AI editorial review: 2026-10-22
For kithul flavor, look for kithul on the label
Kithul, also spelled kitul, jaggery is made by concentrating sap from the flowers of the fishtail palm, Caryota urens. Sri Lanka’s Export Development Board describes it as a solid sweetener, traditionally molded in coconut shells. The coconut-shell shape describes the mold, not the plant supplying the sap.
For watalappan made with kithul jaggery, look for that specific name and check the ingredient list. A package labeled only palm sugar or jaggery does not settle which plant it comes from. Choose by the declared ingredients rather than darkness, shape or a photograph on the front.
Sources: [1]
Cane jaggery and coconut sugar are different purchases
Jaggery can be made from sugarcane: Organic India identifies its jaggery powder as a sugarcane product. That is a useful example of why the word jaggery alone is not a promise of kithul. A powdered form also does not tell you the plant source.
Coconut palm sugar comes from the flowers of a coconut palm. Wholesome lists organic coconut palm sugar as its product’s ingredient and describes a caramel flavor, not the flavor of coconut flesh. It is distinct from both kithul jaggery and grated coconut; buying coconut sugar will not replace the coconut milk in a custard.
Solid jaggery and treacle need different recipes
Kithul treacle is a pourable syrup from the same palm sap; further concentration produces solid jaggery. They are related products with different amounts of water. Do not replace a recipe’s weight of solid jaggery with the same volume of treacle and assume the custard will set the same way.
If you have syrup, choose a method written for syrup. If you have a block, follow the recipe’s grating or dissolving step and weigh the amount where a weight is given. Cups of irregular chunks and cups of fine shavings leave different amounts of empty space; this guide does not provide a universal cup-to-gram conversion.
Choose a substitute for the whole custard method
Dark brown sugar is a practical alternative when a watalappan recipe explicitly allows it. Dini Kodippili’s baked version lists muscovado or dark brown sugar in place of kithul jaggery. Roshani Wickramasinghe’s steamed version also allows dark brown sugar, but reduces its weight. These are recipe-specific choices, not competing universal conversion rules.
Expect a different flavor when you move away from kithul. Keep the chosen recipe’s sugar, egg and coconut-milk quantities together, rather than taking a substitution amount from one custard and adding it to another. Coconut sugar or cane jaggery may sweeten a custard, but neither name establishes a tested replacement for the kithul in your particular recipe.
Prepare the sugar without changing the liquid balance
Break up or grate the amount the recipe needs before measuring out the remaining ingredients. Hungry Lankan dissolves jaggery in its measured coconut milk, with gentle warming if needed, then lets that mixture cool before adding it to eggs. The Flavor Bender starts its chosen formulation with a small measured water addition. Follow your selected method; repeated splashes of extra water are not a neutral fix for a stubborn block.
For our watalappan, use its stated sweetener form and method. Keep the product label for storage instructions and future shopping. This guide offers ingredient selection, not a claim that Culinara has tested every brand or substitution.
Research sources
- Sri Lanka Export Development Board — Benefits and Uses of Kithul Based Products, botanical origin and product forms only (checked 2026-10-22)
- Organic India — Organic Jaggery Powder, manufacturer identification of sugarcane source (checked 2026-10-22)
- Wholesome — Organic Coconut Sugar, manufacturer ingredients and palm-flower source (checked 2026-10-22)
- Dini Kodippili / The Flavor Bender — Sri Lankan Watalappan, baked custard and named sugar alternatives (checked 2026-10-22)
- Roshani Wickramasinghe / Hungry Lankan — Sri Lankan Watalappam, steamed custard and recipe-specific sugar alternatives (checked 2026-10-22)