Cookie masterclasses: sablés, amaretti, speculoos

Cookies look simple until they spread across the tray or come out dry. The lessons in this group take that apart: dough temperature, thickness, resting time in the cold and the oven setting.

Inside — amaretti with their characteristic cracks, Diamants with a sugar edge, vanilla crescents, spiced speculoos, Linzer sablés with confit and cookies with chocolate caramel. A good format for gifts and for a first sale: small batches and straightforward storage.

The group holds three doughs that work in different ways, and they should not be confused. Shortcrust relies on fat separating the flour particles so gluten never develops — hence the crumb and the requirement to work cold. Meringue-based dough, as in amaretti, relies on whipped white and sugar: it does not crumble but dries on the outside and stays chewy within. Spiced doughs such as speculoos are built on invert sugars and spices, which hold moisture, so they stay soft the longest.

Shape is decided not by the formula but by three things: dough temperature when it goes into the oven, the ratio of fine to coarse sugar, and the temperature of the tray. Dough straight from the fridge gives a high edge and a dense centre; warm dough spreads flat before the protein can set. Fine sugar dissolves faster and thins the mass more than coarse.

Shelf life differs across the three families. Shortcrust keeps two to three weeks sealed, because it carries little water. Meringue-based cookies fear humidity and lose their snap within a day in the open. Spiced ones improve on the second or third day: moisture redistributes and the spices open up.