01Combine the dry base.
Mix almond flour and icing sugar until evenly blended.
No compact sugar lumps should remain.
Ricciarelli di Siena are soft almond cookies shaped into flattened oval lozenges and buried in icing sugar before a short bake. The centres should remain tender and moist while the powdered surface develops the fine cracks associated with the Sienese sweet.

Visit Tuscany describes the protected product as a dough based on almonds, sugar and egg white, shaped into an oval lozenge, dusted heavily with icing sugar and baked briefly.
Its home recipe rests the almond mixture overnight, which hydrates the ground almonds and makes the sticky dough easier to shape.
Bitter almond aroma and orange zest reinforce the classic marzipan character without turning the cookies into crisp amaretti.
Ricciarelli leave the oven soft; cooling is part of the setting process and prevents overbaking.
Mix almond flour and icing sugar until evenly blended.
No compact sugar lumps should remain.
Fold in egg whites, bitter almond extract, vanilla and orange zest.
The mixture should become a thick, sticky almond paste.
Cover directly and refrigerate about 12 hours.
The dough should feel firmer and easier to portion the next day.
Preheat to 160°C and line a baking tray.
The moderate oven protects the pale exterior.
Roll portions in icing sugar and shape into oval lozenges about 1 cm thick.
Cookies should have rounded ends and a slightly flattened top.
Dust the tops with another generous layer of icing sugar and space them on the tray.
The surface should look almost snowy before baking.
Bake about 16–18 minutes.
Fine cracks should appear while the centres still feel distinctly soft.
Leave untouched for 10 minutes before moving to a rack.
The cookies should firm enough to lift without becoming hard.
Cool fully and store airtight; flavour and texture improve by the next day.
The centre should remain chewy-soft beneath a delicate sugar crust.
This is a home recipe in the style of Ricciarelli di Siena. The PGI designation applies to product made and packaged within the protected Siena production area under its specification.
Use bitter almond extract sparingly; too much creates a medicinal aroma.
Keep airtight at room temperature for several days; they are often especially good the day after baking.
Approximation assumes 18 equal cookies.
Contains egg and almonds/tree nuts.
Use pasteurised egg whites if serving people at increased foodborne-illness risk; the cookies are baked but remain intentionally soft.
Store completely cooled cookies airtight to avoid condensation.
A soft, moist almond centre with a lightly set, cracked icing-sugar exterior.
Hydration firms the almond paste and improves both shaping and flavour.
No. PGI status depends on the protected production specification and geographic processing area.