Preheat oven to 325 degrees.
Prepare two pipping bags with a round tip with about a 1/4" opening (Ateco #804 is what I use) and a baking sheet lined with parchment paper.
In a medium bowl, sift almond flour and powdered sugar together. Set aside.
In a stand mixer with a whisk attachment, beat egg whites on high speed until they form soft peaks.
Put mixer back on the highest speed and beat until they form stiff peaks.
Take bowl off of mixer and add almond flour/sugar mixture.
Using a rubber spatula, aggressively fold in dry ingredients until just combined. Divide batter and half and add a few drops of pink food coloring to one and a few drops of blue to the other.
Mix one batter until it starts to loosen and becomes a little runny. To test if the batter is ready, lift a small amount of batter from the bowl and drop it back into the batter. If it does nothing, keep mixing. If it slowly melts back into the batter after 20-30 seconds, it is ready.
Repeat with the remaining batter.
Put each batter into prepared pipping bags.
Pipe 1 1/2" circles on prepared baking sheet and firmly tap the bottom of the tray so the batter flattens out. Repeat with remaining batter.
Add a few sprinkles to each macaron.
Let them rest for 30-45 minutes until they form a skin.
Bake for 10-12 minutes, or until they are set.
Let cool before peeling them off parchment paper.