In a bowl, sift together almond flour and powdered sugar (the almond flour I bought was super-fine so I only sifted once. If your almond flour is not of the super fine variety, sift twice). Set aside.

In a standing mixer with the whisk attachment or a hand mixer, beat the egg whites on medium until foamy. Add cream of tartar and continue to mix.

Slowly add sugar, one tablespoon at a time, increase speed to medium-high and beat until hard peaks form. Then mix in vanilla extract completely.

Setting the whisk aside, pour flour and sugar mixture over the egg mixture and gently mix the two together with a spatula. It's best to mix by running the spatula clockwise around and then through the middle of the batter over and over again.

Mix until the batter has become thin and lava like (You do not want to over mix the batter. This will lead to cracked macaron shells. The batter is ready when you drop a sample of it and the ribbons of the drop dissolve within 10 seconds. This may take a couple attempts).

Once the batter has been mixed enough, add in sprinkles (The more you add at one time the greater chance of the sprinkles bleeding which doesn't have to be a bad thing. Bleeding sprinkles can actually make the macarons look pretty fun. But again, try not to mix the batter any more than you need to at this point).

On a baking sheet lined with parchment paper or on this macaron silicone mat , pipe the macaron batter from a piping bag or gun into 1.5 inch circles.

Tap the baking sheet on the table a couple times to cause any air bubbles in the batter to be released (Any air bubbles will also cause the shells to crack).

Top the shells with more sprinkles.

Pre-heat the oven to 300 degrees while you let the macarons sit for 15-30mins. You want the shells to harden up. After 30min if you touch the shell and it doesn't stick to your finger, it's ready to bake.

Bake the shells for 18-20min. Cool on a wire rack and then remove from parchment paper or silicone mat.

While the shells are cooling, make the funfetti white chocolate buttercream. In a bowl whisk together the butter and powdered sugar until fluffy.

Melt the white chocolate in the microwave and add to the butter and powdered sugar mix along with the vanilla extract. Mix thoroughly.

Once complete add in sprinkles and stir with a wooden spoon or spatula.

With a piping bag or gun, pipe icing onto half the shells and top with the other half of the shells.

Celebrate by eating one or two....or more....