Mix dry ingredients together in one bowl and set aside.
With a stand or hand mixer, beat butter/oil with maple syrup on medium until creamy, add in vanilla and almond extracts.
Add the egg and keep beating until no more yolk remains.
Slowly add in the dry mix while still beating until a dough forms.
With a cookie scoop or spoon, drop cookies onto a lined baking sheet in balls, then shape them into crescent moons with your hands and add slivered almonds on top, pressing them onto the top of the cookies.
Bake cookies for 12-15 minutes, let cool for a few minutes and serve or store in a container.