Pre-heat oven to 375 degrees and grease two large baking sheets
In a large bowl, whisk flour, baking powder, cornstarch, cream of tartar and salt
In a stand mixer, using the paddle attachment, or an electric mixer on med-high speed, cream butter, and sugar until light and fluffy (about 3-4 mins)
Beat in the egg, almond, and vanilla extract until fully combined.
Gradually add the flour mixture to the butter mixture and mix on low to medium speed until well blended . The consistency of the dough will be thick.
Refrigerate for 1 hour
Using a medium-sized cookie scoop, drop the cookie dough onto well-greased baking sheets or silicone mats. Using the palm of your hand, or the bottom of a glass gently flatten the top of the cookie down. You don't want it completely flat or the cookie will be too thin.
Place in the oven and bake in the preheated oven at 375 for 10 minutes. You want to remove them from the oven when they feel undercooked. You don't want them to get brown or crisp around the edges.
Place on a wire rack and cool for 15 minutes
Stir the chocolate chips and coconut oil together in a microwave safe bowl and heat in 30 second increments stirring in between. You want the chocolate melted enough so you can spoon it over the cookie, but not too thin that it slides off.
Using a spoon, spread melted chocolate across half of each cookie top and place dipped cookies on a cookie sheet lined with parchment paper. You can also dip it into chocolate. Allow chocolate to sit for 3-5 minutes and then add sprinkles. If the chocolate is too hot, the sprinkles will melt