Chestnut Meringues

These chestnut meringues fold chopped marrons glaces (those candied French chestnuts that cost more than most people admit) into a classic French meringue base, giving each cookie sweet little nuggets of caramelized chestnut through the shell.

The technique is straightforward French meringue: stiff-peaked egg whites, sugar added gradually so it dissolves properly, vanilla for warmth. Folding in the chopped marrons glaces after the meringue is built keeps everything airy. A light snowfall of cocoa powder at the end adds just enough chocolate bitterness to balance the pure sugar-and-chestnut sweetness.

Low and slow is the only way these work. The 275F (135C) oven is actually more of a dehydrator than a baker, it drives moisture out of the meringue without coloring the surface. You want crisp on the outside, slightly chewy at the core, like a proper Parisian tea cookie.

Kitchen Tips

• Start with a spotlessly clean, grease-free bowl and beaters, even a trace of fat prevents egg whites from whipping to full volume
• Add sugar slowly, a tablespoon at a time, dumping it all at once collapses the meringue
• Superfine sugar dissolves more cleanly than regular granulated, regular sugar can leave the meringue gritty
• Crack the oven door slightly for the last 15 minutes, this lets residual moisture escape and crisps the outside properly
• Store in an airtight tin with a piece of paper towel, meringues wilt in humid air within hours

Variations

• Fold in chopped toasted almonds or hazelnuts alongside the marrons for more texture
• Pipe the meringues through a star tip for a prettier, more bakery-style shape
• Sandwich two cookies together with a thin layer of chocolate ganache for a richer dessert