Equipment Needed
- Electric hand mixer or stand mixer
- Large mixing bowl
- Zester or microplane
- Juicer
- Baking sheets
- Parchment paper or silicone baking mats
- Measuring cups and spoons
- Wire cooling rack
- Fine-mesh sieve
Step-by-Step Instructions
I always begin by zesting my lemons first, taking care to get only the bright yellow zest and not the bitter white pith underneath. The scent that fills the air is instant therapy. In my mixing bowl, I combine the softened butter and ½ cup of powdered sugar. I beat them together on medium speed for a minute, then add the fragrant lemon zest. This is where I turn the mixer to medium-high and let it run for a full 3-4 minutes. I watch as the mixture becomes incredibly pale, fluffy, and almost whipped. This aeration is the first key to the cookie’s delicate texture. I then beat in the fresh lemon juice and vanilla extract. The mixture might look slightly curdled at this point, but that’s perfectly fine—it will come together with the dry ingredients.
In a separate bowl, I whisk together the flour, cornstarch, and salt. The cornstarch is non-negotiable; it’s what gives these cookies their signature tender, sandy, melt-in-your-mouth quality. With my mixer on low, I gradually add the dry ingredients to the butter mixture in two or three additions. I mix only until the dough just comes together and begins to pull away from the sides of the bowl. It will be soft, slightly sticky, and incredibly fragrant. I turn the dough out onto a piece of plastic wrap, shape it into a flat disc, wrap it tightly, and chill it in the refrigerator for at least 1 hour. This firms up the butter, making the dough rollable and preventing excessive spreading.
Once chilled, I preheat my oven to 350°F (175°C) and line my baking sheets with parchment. I take the dough out and let it sit for 5-10 minutes to become just pliable enough to roll. On a lightly floured surface, I roll it out to about ¼-inch thickness. Using a small round or fluted cookie cutter (about 1.5 to 2 inches), I cut out the cookies, placing them about 1 inch apart on the sheets. I gather the scraps, re-roll once, and cut more. The dough bakes best when it’s cold, so if my kitchen is warm, I’ll pop the sheet of cut cookies into the freezer for a quick 10-minute chill before baking.(See the next page below to continue…)