Equipment Needed
- Stand mixer or electric hand mixer (a whisk and strong arm can work, but it’s a workout!)
- Large mixing bowl
- Baking sheets
- Parchment paper or silicone baking mats
- Piping bag with a large star tip (optional, for classic shape)
- Wire cooling rack
Step-by-Step Instructions
Everything begins with the butter. I take my two sticks of butter out hours ahead so they can soften slowly. The ideal texture is cool to the touch but yields completely when pressed with a finger—it should not be oily or shiny. I place it in the bowl of my stand mixer fitted with the paddle attachment. To this, I add the sifted powdered sugar. I start mixing on low to avoid a sugar cloud, then increase the speed to medium-high. Now, here is the most important step: I set a timer for a full five minutes and let the mixer run. I watch as the mixture goes from yellow and grainy to pale, voluminous, and incredibly fluffy, resembling soft whipped cream. This is the “whipped” in whipped shortbread, and it’s what creates that airy, melting texture.
After my timer beeps, I scrape down the sides of the bowl. If I’m using it, I add the vanilla extract and salt now, mixing for another 30 seconds to incorporate. Then, with the mixer on its lowest possible speed, I add the flour in two or three additions. I mix only until the flour is just incorporated and the dough begins to pull away from the sides of the bowl. The moment I see no more dry flour, I stop. Overmixing at this stage will develop gluten and lead to a tougher cookie. The dough will be incredibly soft, light, and almost like a thick frosting.
Now, for shaping. There are two classic ways. For the simplest, elegant round, I use a small cookie scoop (about 1 tablespoon) and drop mounds onto my parchment-lined baking sheets. For the traditional look, I spoon the dough into a piping bag fitted with a large open star tip (like a 1M) and pipe 1.5-inch rosettes. They hold their shape beautifully. The key is to place them about 2 inches apart; they spread only slightly. I then chill the entire baking sheet in the refrigerator for 15-20 minutes. This final chill ensures they hold their perfect shape in the oven.(See the next page below to continue…)