Preheat and prep: Set your oven to 350°F (175°C). Line a baking sheet with parchment paper for easy cleanup and even baking.
Mix dry ingredients: In a medium bowl, whisk together almond flour, baking powder, salt, and sweetener.
Break up any clumps for a smooth dough.
Combine wet ingredients: In a small bowl, whisk the egg, melted butter, vanilla, and almond extract. Make sure the butter isn’t hot so it doesn’t scramble the egg.
Form the dough: Pour wet ingredients into the dry mixture. Stir with a spatula until a soft dough forms.
It should be thick but scoopable.
Rest briefly: Let the dough sit for 2–3 minutes. Almond flour absorbs moisture and firms up slightly, making shaping easier.
Portion: Scoop 1 to 1 1/2 tablespoons of dough per cookie. Roll into balls and place them on the baking sheet, leaving about 2 inches between cookies.
Flatten: Gently press each ball to about 1/3 inch thick with your fingertips or the bottom of a glass.
Press a few sliced almonds on top if using.
Bake: Bake for 10–12 minutes, until the edges turn lightly golden. Do not overbake—keto cookies firm up as they cool.
Cool: Let cookies cool on the baking sheet for 10 minutes, then transfer to a rack to cool completely. They’ll set and get the right texture as they cool.
Enjoy: Serve once fully cooled for the best bite—crisp edges and a tender middle.