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Marcela's Ground Walnut Cookies will melt in your mouth.

It’s time for 12 Days of Cookies, FoodNetwork.com’s annual cookie swap. Each day visit us here on the Dish for a peek at new holiday cookies, party-planning tips and top techniques for rolling, spooning, slicing, baking and decorating delicious sweet treats to give – or keep – from favorite Food Network chefs. Then visit Cooking Channel’s blog for great takes on holiday baking from Cooking Channel chefs and Food People alike – cookies by the dozen to celebrate all season.

These crumbly, buttery walnut cookies are named for the Spanish word for powder, which, according to Marcela Valladolid, is what they turn into the minute you bite into one. They’re traditionally Mexican wedding cookies, but she ate her mother’s Polvorones at Christmastime every year growing up, dipped in hot chocolate. Once you’ve sampled your first batch, you’ll probably find yourself looking for other excuses to make them, too.

Get Marcela’s recipe and check out dozens and dozens of batches in 12 Days of Cookies for more sweet ideas. Then tell us what you’re baking.

• Bake up more cookies with an international flair.
• See which chefs baked which cookies in past seasons to get inspired for your own baking.
• Cooking Channel is joining in with a baker’s dozen of cookies of their own. Today’s cookie: Kelsey Nixon’s Peppermint Fudge Crinkle Cookies

Melanie Rehak, author of Eating for Beginners, has been baking cookies since she was old enough to climb onto the kitchen stool. She and her family are partial to Zimtsterne—cinnamon stars—for the holidays, but love cookies of all kinds all year long.