Luna: Our Traditional Mexican Wedding Cookie, Explained

The first time I rolled a cookie in powdered sugar, I was five years old. My hands were smaller than the cookie. My father showed me how to cup them, both palms together, so the little round of shortbread wouldn't break in half before it made it into the sugar. He said if I could learn to roll one without cracking it, I could roll a thousand. By the time I was seven, I was rolling them by the tray.

That cookie is Luna.

Almost every Mexican-American family from the Rio Grande Valley knows a version of what we call "pan de polvo" — literally translated, "dust bread." Some call them polvorones. Some call them Mexican wedding cookies. In my father's bakery in McAllen, Texas, they were the cookie that people drove across town for during the weeks leading up to Christmas, before a wedding, in the days before a quinceañera. They were the cookie your abuela knew by heart. The cookie that came out of a paper bag at the tail end of a long meal, sitting next to the coffee.

Luna is our tribute to that cookie. Same recipe. Same family. New form, so that the whole country can finally taste what South Texas has been eating for generations.

What Luna Actually Is

Luna is a traditional Mexican wedding cookie made from my father's original pan de polvo recipe. It's a butter-based shortbread with finely chopped pecans, baked until the edges just turn golden, then rolled — while still warm — in a generous coating of powdered sugar. When you pick one up, some of that sugar comes off on your fingers. That's the point. That's how you know it's the real thing.

The name "pan de polvo" comes from the Spanish word polvo, which means dust. The cookie earns the name honestly. The butter and finely ground pecans make it so tender that it almost dissolves the second it hits your tongue. Bite down and it powders. There's a snap and then just a soft, buttery collapse followed by the sweetness of the sugar, the warmth of the pecan, and something clean and cool from the vanilla.

The Family Recipe Behind Luna

My grandfather started with pan de polvo. My father perfected it at our family bakery in McAllen for over 40 years, hand-rolling and dropping cookies one at a time in the hot South Texas summers. Those years are the recipe. Not just the ingredients — the ratios, the technique, the way the dough should feel before you know it's ready, how long to let the pecans sit in the butter before you fold in the flour. That kind of knowledge doesn't fit on a card. It lives in the hands.

I spent 16 years in nonprofit work before I opened Romero Cookies. The whole time I was working, that cookie was in the back of my mind. Not the cookie exactly — the feeling around it. The way people at every wedding, every quinceañera, every Nochebuena in the Valley would ask the same question: "¿Y las galletas son de Romero?" Are those Romero's cookies? If they were, people took two. Sometimes three. They tucked them into napkins to bring to a tía who hadn't come.

I wanted that cookie to reach people who don't live within driving distance of McAllen. The recipe hasn't changed. The way it gets to you has.

Where the Cookie Comes From (The Actual History)

Pan de polvo isn't a Texas invention, though South Texas has claimed it as home for a long time. Its roots go back to the Spanish colonial period, when Spanish nuns and home cooks brought butter-and-flour shortbread traditions to Mexico. Those Spanish cookies were called polvorones, and the name traveled with them. Over the centuries, Mexican bakers adapted the recipe with local ingredients — cinnamon, anise, and eventually pecans, which grow abundantly across northern Mexico and the American Southwest.

By the time the cookie reached the Rio Grande Valley — the strip of South Texas that hugs the Mexican border — it had become something specific to the region. Northern Mexican and South Texas families made pan de polvo their own. They used pecans instead of the almonds you'd find in Spanish polvorones. They rolled the cookies smaller. They served them at weddings and holidays. They passed the recipe from mother to daughter, from tía to niece, from panadería owner to apprentice.

The cookie has cousins in nearly every culture that inherited shortbread. Italians make similar cookies with almond. Greeks call theirs kourabiedes. Russians have their tea cakes. Mexican-Americans in the Southwest have bizcochitos, which are close but not identical. What sets pan de polvo apart is the combination of pecan, the specific crumb texture that comes from a very high butter ratio, and the double-roll in powdered sugar — once when the cookies come out of the oven, and again after they cool, so the coating is thick and generous.

Luna is that cookie. Made the way it's always been made. Just packaged so it survives a trip to your front door.

How Luna Differs From "Regular" Mexican Wedding Cookies

If you've searched "Mexican wedding cookie" online, you've seen a hundred versions. Most of them are the same idea with small twists. Some use walnuts. Some use almonds. Some add anise. Some skip the double sugar roll. Some are made with lard. Some are made with butter. Some are round balls. Some are pressed with a cookie stamp.

Here's what Luna is:

Luna uses pecans — specifically because that's what South Texas grows and what my father used. Pecans have a softer, buttery flavor than walnuts. They toast into the cookie rather than fighting it. The dough is butter-based, not lard-based, which gives a cleaner finish and lets the pecan speak. There's no anise. The Rio Grande Valley version of pan de polvo is almost always plain cinnamon-and-sugar, and that's what Luna is. Nothing fights with the pecan. Nothing gets in the way.

We roll every cookie into a small round about the size of a walnut in its shell. Big enough to feel like a proper cookie. Small enough that you don't feel guilty eating four. The sugar coating is heavy — the way the ones from my father's bakery always were. Not a light dusting. A real coat.

What You Taste When You Eat One

The first thing is the powdered sugar. It hits the tongue and dissolves before you've had a chance to think about it. Then the butter. The butter carries everything — it's what makes the cookie fall apart in your mouth rather than break. Then the pecan comes in slower, warmer, a little earthy. And then a soft finish of vanilla and the faintest lift of cinnamon.

The whole experience takes about eight seconds. Then you want another one.

When People Serve Luna (And Why)

I built Luna to be the cookie you turn to when the moment matters. Not a snack. A gesture.

Christmas. In Mexican-American households across Texas, California, Colorado, and the Southwest, pan de polvo is a Christmas staple. My family made trays of them every December — dozens and dozens of dozens. If you grew up with these, Christmas is when your memory sharpens the most. Luna arrives packaged to gift or to serve, and 70+ percent of the orders I fill in a given year come between mid-November and Christmas Eve.

Weddings. The name isn't a marketing invention. Mexican wedding cookies are called that because they've been part of Mexican and Mexican-American wedding celebrations for generations. They land on dessert tables next to the tres leches. They fill the little tulle bags that go home as favors. They pair beautifully with champagne. Luna works for the whole scale of the wedding — the intimate courthouse ceremony, the 300-person reception, the anniversary dinner the next year.

Quinceañeras and first communions. Both events are anchored in family, faith, and food. Both have long dessert tables. Both call for a cookie that says: this is us, this is where we come from. Luna does that.

Just because. Mother's Day. Someone's birthday. A tía who's not feeling well. A friend who's just moved into a new house. The whole reason my father made these cookies year-round is that they're not just for events. They're for anyone you love.

The Nut Question

Luna contains pecans. This matters, and I want to be clear about it.

If you're gifting Luna to someone with a tree nut allergy, don't. Choose Stella instead — our nut-free churro-flavored cookie, built specifically for corporate offices, schools, family members with allergies, and anywhere the safe choice is the only choice. Stella carries the same crumb, the same care, and the same family recipe philosophy. It just doesn't contain any nuts.

For everyone else, the pecan is part of what makes Luna what it is. Don't leave it out.

How Luna Ships and Arrives

Luna is packaged to travel. Every cookie is baked, cooled, hand-rolled in sugar, and layered into a tin lined with tissue. The tin is sealed. The tin goes into a shipping box with insulation. The box ships nationwide, to any of the 48 contiguous states.

When it arrives at your door, the cookies should look the same as they did when they left our kitchen. If they don't, tell me. Every order has a real person behind it, and that person is either me or someone I trained.

We ship free on any order over $50. There are no bulk discounts, no wholesale rates in the direct-to-consumer store, Luna is priced for events, and it's priced honestly. When you send Luna to someone, you're sending the real thing. Not a version made cheaper for shelf space at a grocery store.

Frequently Asked Questions

What is Luna made of?

Luna is a traditional Mexican wedding cookie made from butter, all-purpose flour, finely chopped pecans, powdered sugar, vanilla, and a touch of cinnamon. It's my father's original pan de polvo recipe from his bakery in McAllen, Texas.

Is Luna the same as pan de polvo?

Yes. "Pan de polvo," "polvorones," and "Mexican wedding cookies" are three names for the same style of cookie. Luna is the specific Romero version of that cookie, made from our family recipe. The name pan de polvo is used most often in South Texas and northern Mexico.

Does Luna contain nuts?

Yes. Luna contains pecans. If you need a nut-free option, choose Stella — our churro-flavored, nut-free cookie built for allergy-sensitive gifting.

How many cookies come in a box of Luna?

Luna is available in several sizes, from small favor boxes for individual gifts to full tins for holiday gifting. Sizes and quantities are listed on the Luna product page.

How long do Luna cookies stay fresh?

Luna is shelf-stable and stays fresh for about 3 weeks when kept in the original sealed tin at room temperature. For longer storage, transfer the cookies to an airtight container.

Can I ship Luna as a gift?

Yes. We ship nationwide across the 48 contiguous states. If you're placing an order as a gift, you can add a personalized note at checkout and we'll include it with the shipment.

Are Luna cookies kosher, halal, or vegan?

Luna contains butter (dairy) and is not vegan. Please contact us directly if you have specific dietary questions.

Do you offer Luna in bulk for corporate orders?

Yes. We work with corporate clients throughout the year, especially around Hispanic Heritage Month (September–October) and the December holidays. For corporate orders, visit our corporate cookie gifts page or contact us directly.

The Cookie Your Grandmother Would Recognize

Most Mexican wedding cookies you find online aren't the real thing. They're sweeter, softer, made for a general American palate. That's fine for what they are. But if you grew up with the real ones — the ones that came out of a Rio Grande Valley bakery, small and round and rolled twice in sugar and packed by the dozen into brown paper — you'll know Luna the second you taste one.

That's not a marketing line. That's the standard I hold myself to. If my father tasted one of these today, he'd nod. That's the only review I ever cared about.

If you're ready to taste the real thing for yourself, for a wedding, for a holiday, for someone who's been missing home — order Luna at romerocookies.com/products/luna. And if you'd like to try Luna alongside Valentina (our cinnamon-pecan heart cookie) and Stella (our nut-free churro), consider our Mexican Variety Tin — 70+ cookies, three flavors, one story.

Con cariño,
Liddy Romero
Founder, Romero Cookies