Pre-heat the oven to 160℃/ 300
Combine the egg white powder with the granulated sugar.
Sift the almond flour and powdered sugar.
Whip egg whites on medium speed until foamy/frothy.
Gradually add the granulated sugar, egg white powder mixture, continue whipping on medium speed until medium peaks form.
Add food coloring, keep whisking on medium speed until glossy stiff peaks form.
Add half the almond flour and powdered sugar mixture to a bowl with the meringue.
Mix gently with a spatula until combined.
Add the remaining almond flour mixture and combine.
Once the dry ingredients are just incorporated, remove 1/3 of the batter and pour into a piping bag fitted with a St Honoré-style tip.
Start folding gently the other half of the batter until it becomes glossy and falls off the spatula like ribbons, this process is called macaronage.
Pour the second bater into a piping bag fitted with a round trip (#2A).
Pipe the 1st macaron batter onto the tray with a Teflon sheet with the pre-printed templates under it. Use this batter to make the textured top of the cake.
Pipe 2nd batter to make the bottom of the cake.
Pop any air bubbles using a toothpick.
Let the piped macarons rest on the kitchen counter until the skin develops.
Once the skin is formed, transfer to oven place & bake for 15-17min. Let the macarons cool before removing.