Revive yesterday's batch of cookies with this brilliant trick.

Perri Ormont Blumberg
May 15, 2018
UMeimages/Getty Images

This weekend, the world will marvel at Meghan Markle's wedding dress. We'll also delight at the florals. And of course, we'll ooh and ahh over the food. Specifically, we can't wait to see how the royal wedding cake turns out. The Dux Femina Facti for the evening will be Claire Ptak, owner of London's Violet Bakery. Ptak, the baker of the royal wedding cake, will whip up a special lemon-elderflower confection with fresh flower garnishes, a fancy feat you likely won't replicate at home anytime soon.

However, the talented pastry chef has some brilliant tips for the casual baker, as revealed in a recent article on The Kitchn featuring tips from her Violet Bakery Cookbook. One tidbit that really caught our eyes? You can salvage day-old cookies with a simple technique.

WATCH: Flourless Peanut Butter-Chocolate Chip Cookies

"[D]ay-old cookies do tend to be a bit softer than freshly baked ones," writes Sheela Prakash on The Kitchn. "That's because they've absorbed some of the moisture in the air. Claire suggests a quick fix: Put the cookies on a baking sheet lined with parchment paper and warm them in the oven. The heat of the oven will help evaporate that moisture and make the cookies crisp again."

Can Kensington Palace kindly gift us any leftover cookies from this weekend's fête so we can put her sage counsel into practice?