Alexandra Cooks' Famous Shortbread Cookies Recipe: Buttery Crunch With Vanilla Infusion

Alexandra Cooks' famous shortbread cookies recipe delivers that signature buttery crunch with a delicate vanilla infusion—just like the ones that disappear in minutes. The secret lies in precise measurements and a chilling step that transforms tender dough into crisp, melt-in-your-mouth perfection. I’ve baked these dozens of times, and every batch turns out with that signature texture: golden edges, velvety crumb, and a vanilla aroma that fills the kitchen.

What makes these shortbreads stand out is their simplicity: just four ingredients—flour, butter, sugar, and vanilla—butter that’s cooled to room temperature (never melted) and a touch of vanilla extract for that signature warmth.

The dough rests overnight in the refrigerator, which allows the gluten to relax and the flavors to meld, ensuring cookies that are crisp around the edges and tender in the center.

Once baked, these shortbreads have a buttery crunch that gives way to a rich, vanilla-infused crumb—no sandiness here. The edges stay perfectly golden while the interior remains soft, making them ideal for tea time, gifting, or satisfying a sweet tooth.

The recipe scales easily, so you can bake a single batch for personal indulgence or double it for holiday gatherings.

For extra flair, try adding a sprinkle of flaky sea salt or a pinch of lemon zest to the dough before baking. Store in an airtight container for up to a week, though they rarely last that long. Let’s get started on these iconic cookies!

Ingredients for alexandra cooks' famous shortbread cookies

Four core ingredients plus optional flair—this is the secret to Alexandra's legendary shortbread texture.

The butter makes or breaks these cookies. Plugrá or Land O'Lakes unsalted are my go-tos—they have just the right fat content for that signature crunch. Buy it in bulk from Costco or Whole Foods for the best price, and let it sit out for 1-2 hours before mixing. Room-temperature butter blends smoothly without turning the dough greasy. The flour? King Arthur or Gold Medal brands work best—they're finely milled and consistent. Skip the self-rising or whole wheat here; we're going for that classic buttery crunch.

No vanilla extract? Vanilla bean paste works in a pinch, or even almond extract at half the amount for a different but still delicious twist. The sugar can be swapped for powdered sugar if you prefer a softer texture, but superfine sugar is ideal—it dissolves evenly. For extra flair, add 1 tbsp lemon juice to the dough if you love that zesty note. The salt and zest are optional but worth it—they balance the sweetness and add complexity. If you're baking for a crowd, double everything and use two cookie sheets.

Wrapped in parchment, these cookies stay fresh for 5-7 days at room temperature. For longer storage, freeze the dough balls (before baking) for up to 3 months30 minutes before serving. The aroma alone will have everyone gathering in the kitchen.

Step-by-step instructions for Alexandra Cooks' famous shortbread cookies

Here's the method that delivers melt-in-your-mouth texture and perfect vanilla infusion every time.

In a stand mixer fitted with the paddle attachment, combine the 1 lb unsalted butter and 0.5 cup granulated sugar. Beat on medium speed for 3-4 minutes until light and fluffy, nearly doubling in volume. You'll see the mixture turn pale and airy—this creaming process is what creates those signature tender layers in shortbread.

Add the 1 tbsp pure vanilla extract and 1 tsp lemon zest and mix for another 30 seconds until fully incorporated. The lemon zest adds subtle brightness that balances the richness of the butter, while the vanilla infuses deeply during mixing. Here's the thing—don't skip the zest. It's what makes these shortbreads uniquely bright compared to classic versions.

Reduce the mixer speed to low and gradually add the 3 cups all-purpose flour through the feed tube. Mix just until combined—about 30-45 seconds—until the dough comes together. You'll notice it's slightly crumbly at first, which is normal. Overmixing develops gluten and makes the cookies tough.

Once the dough forms, press it into a 1-inch thick disc and wrap tightly in plastic wrap. Chill in the refrigerator for at least 2 hours or up to 24 hours. This resting period is crucial—it allows the flour to fully hydrate and the butter to firm up, preventing excessive spreading when baking. I like to press the dough flat before chilling so it's ready to slice immediately after.

Preheat your oven to 325°F and line two baking sheets with parchment paper. Remove the chilled dough from the refrigerator and cut into ½-inch thick slices using a sharp knife or cookie cutter. For perfectly even cookies, dip the knife in flour between cuts to prevent sticking.

Place the slices on the prepared baking sheets, spacing them about ½ inch apart—they won't spread much, but this gives them room to rise slightly. Bake for 25-30 minutes until the edges are just beginning to turn golden and the centers still look pale. Your oven might run hot, so start checking at the 20-minute mark.

Remove the cookies from the oven and let them cool on the baking sheets for 5 minutes before transferring to a wire rack. While still warm, sprinkle the tops with 0.5 tsp flaky sea salt for that signature finishing touch. The salt enhances the buttery flavor and adds a delightful contrast.

Allow the cookies to cool completely before storing in an airtight container. I know it's tempting to eat them warm, but letting them cool fully develops their signature crunch. These shortbreads will keep for up to 1 week at room temperature, though they rarely last that long in my kitchen. The texture should be tender yet firm, with a melt-in-your-mouth quality that's hard to resist.

Essential equipment for this dish

Stand Mixer Essentials

The KitchenAid Artisan Series stand mixer is my go-to for shortbread—its powerful motor handles the butter-cream stage without overheating. The paddle attachment is a must for aerating the butter properly, while the feed tube keeps flour contained during mixing.

I’ve tried cheaper mixers, but they struggle with the butter’s density. For budget-friendly options, the Cuisinart Smart Mixer works well too. 💛

Precision Tools Matter

A sharp chef’s knife (like Wüsthof Classic) is non-negotiable for cutting clean slices—dull blades tear the dough. For perfect rounds, invest in a cookie cutter (I love Nordic Ware’s 2-inch cutter). A digital kitchen scale ensures accurate measurements, especially for butter (1 lb = 454 grams).

For chilling, use plastic wrap or a dough scraper to press the dough flat—this prevents air gaps.

Baking Sheets & Parchment

Use half-sheet pans (18x13 inches) for even baking—Wilton’s are my top pick. Line them with parchment paper (not silicone mats) to prevent sticking. For extra insurance, I dust the parchment with flour before placing dough slices.

Avoid overcrowding—24 cookies per sheet gives them room to develop that signature golden edge.

Temperature Control

A thermometer (like Thermoworks Thermapen) ensures your oven hits 325°F—shortbread is finicky about temperature. If your oven runs hot, lower it to 300°F for even baking.

For even heat distribution, use the middle rack and rotate pans halfway through baking. A wire cooling rack prevents soggy bottoms while cooling.

Optional Extras

For flavored variations, a microplane (to zest lemons) and measuring spoons (for extracts) are handy. A pastry brush helps dust cookies with powdered sugar post-bake. For storage, airtight containers (like Rubbermaid Brilliance) keep them fresh, while parchment-lined boxes make gifting easy. 💡

Frequently asked questions