Yes, you can substitute butter with ghee in shortcrust pastry. Ghee adds a nutty flavor and can result in a flakier crust due to its lower moisture content.
Ghee is clarified butter, meaning the milk solids and water have been removed. This makes it nearly 100% fat, unlike butter which contains water and milk solids. When using ghee in shortcrust pastry, the lower moisture content can lead to a more tender and flaky crust because less gluten develops. The process is straightforward: simply replace the butter in your recipe with an equal amount of ghee, measured by weight. Ensure the ghee is cold or solid for best results, just as you would with butter. The fat coats the flour particles, preventing excessive gluten formation, which is key to a tender shortcrust. The nutty flavor of ghee also adds a unique dimension to the pastry, complementing both sweet and savory fillings.
When substituting ghee for butter, chill the dough for at least 30 minutes before rolling it out. This allows the ghee to solidify, preventing the pastry from becoming too soft and difficult to handle.