Earthy Macarons for Earth Day

Sift the almond flour and powdered sugar through a fine-mesh sieve into a medium bowl. In a separate bowl, whisk the egg whites until white foam starts to appear, then add in the granulated sugar in 3 increments. Whisk until stiff peak. Fold all of the dry ingredients into the meringue by hand. Take out half of the batter and add 1 drop of blue food coloring gel. Place both the blue and white batter together in a piping bag. Pipe the macarons on a baking mat. Let them sit at room temperature for 45 minutes to 1 hour (depending on humidity, wait time might be shorter/longer) before baking. The macaron is ready to bake when you run your fingers by the shells and it doesn’t stick. Bake at 300F for 15 minutes.