Can I make these cookies without almond extract?
Almond extract is key to the flavor profile, but you can reduce it to 1 tsp and increase vanilla bean paste to 2 tsp for a subtler almond taste.
Why do my cookies spread too much?
Ensure egg whites are at room temperature and whipped to stiff peaks. Over-mixing the dough after folding in flour will deflate the meringue structure.
Can I substitute regular sugar for caster sugar?
Caster sugar dissolves more evenly in the egg white foam. Granulated sugar works but may produce slightly less uniform texture; process it briefly in a food processor if needed.
How long do these cookies keep?
Store in an airtight container at room temperature for up to 5 days. They're best eaten within 2–3 days while still chewy.
Can I make the dough ahead?
Prepare the dough up to 2 hours before baking, cover with plastic wrap, and refrigerate. Bake straight from the fridge; add 1–2 minutes to baking time.