📖 Instructions

1. Gather & Prepare: Take all your ingredients out. Make sure your butter is softened to room temperature – this is super important for a smooth batter. Line two large baking sheets with parchment paper or silicone baking mats. Preheat your oven to 350°F (175°C).
2. Cream Butter & Sugar: In a large mixing bowl, using an electric mixer (either a stand mixer with the paddle attachment or a hand mixer), cream together the softened unsalted butter and granulated sugar on medium speed until the mixture is light, fluffy, and pale in color. This usually takes about 3-4 minutes. Don't skimp on this step! It incorporates air, which contributes to the cookies' texture.
3. Add Egg & Extracts: Beat in the large egg until it's fully combined and the mixture looks smooth. Then, stir in the almond extract and vanilla extract. The almond extract is the star here, giving that distinct nutty flavor.
4. Combine Dry Ingredients: In a separate medium bowl, whisk together the all-purpose flour, baking powder, and a pinch of salt. Whisking ensures these dry ingredients are evenly distributed, so you don't end up with pockets of salt or leavening.
5. Gradually Add Dry to Wet: Slowly add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix! Overmixing develops the gluten too much, which can lead to tough cookies. As soon as you see no more streaks of flour, stop mixing.
6. Stir in Almond Flour & Sliced Almonds: Gently fold in the almond flour and the sliced almonds using a rubber spatula. The almond flour adds a delicate texture and intensifies the almond flavor. Make sure the almonds are evenly distributed throughout the dough.
7. Chill the Dough (Crucial Step!): This is where a lot of recipes go wrong! Cover the bowl with plastic wrap and refrigerate the cookie dough for at least 30 minutes. If you can chill it for an hour, even better. This helps prevent the cookies from spreading too much and encourages those lovely crisp edges. Cold dough bakes more slowly, giving the edges time to crisp up before the center fully sets.
8. Scoop and Arrange: Once chilled, scoop rounded tablespoons of dough onto your prepared baking sheets, leaving about 2 inches between each cookie. A small ice cream scoop works perfectly for uniform cookies. If you like, gently press a few extra sliced almonds onto the top of each dough ball for a prettier finish.
9. Bake to Golden Perfection: Bake for 10-12 minutes, or until the edges are golden brown and the centers are just set. Keep an eye on them, especially during the last few minutes, as oven temperatures can vary. You want that beautiful golden hue for crispiness.
10. Cool and Enjoy: Let the cookies cool on the baking sheets for 5 minutes before carefully transferring them to a wire cooling rack to cool completely. This allows them to firm up and prevents them from breaking. Once cool, they're ready to be devoured!