To make cookies:

1. Preheat oven to 350 degrees. Line baking sheets with parchment paper
2. Whisk together egg, maple syrup, butter & cake batter extract
3. In a separate large bowl combine the almond flour, salt and baking soda. Add wet ingredients to dry ingredients and combine, then fold in the sprinkles
4. Refrigerate dough for 20-30 minutes (so it’s easier to work with)
5. Roll dough into 16 balls and flatten slightly. Place on baking sheet
6. Bake for 8-9 minutes. Immediately transfer to cooling rack and let cool completely

To make frosting filling:

1. Cream the butter using a hand or stand mixer, then beat in the powdered sugar
2. Add a splash of milk only if necessary to help combine
3. Lastly beat in vanilla extract until smooth and creamy consistency

To assemble cookie sandwiches:

1. Spread 1-2 tablespoons filling on a cooled cookie, then top with another cookie
2. Enjoy immediately and keep stored in the refrigerator