Preheat the oven to 350 °F (180 °C). Line a cookie sheet with parchment paper.
In a mixing bowl, add all the ingredients: almond flour, maple syrup, milk of choice, and any of the optional ingredients, if used : salt, vanilla extract, and almond extract.
Combine the ingredients with a rubber spoon until it forms a cookie dough ball.
Roll a tablespoon of dough between your slightly oiled hands and release it on the prepared baking sheet.
Press the cookie a little with your fingertips to flatten it and add a few sliced almonds on top to decorate.
Repeat these steps until no more cookie dough is left, leaving a thumb of space between the cookies.
Bake the cookies for 10-12 minutes at 350 °F (180 °C) until slightly golden and slightly hard on top.
Let the cookies cool down on the sheet for 5 minutes, then transfer them to a cooling rack to completely cool down.
