Preheat your waffle maker.
For the waffles, mix the All-Purpose Flour (1 3/4 cup), Brown Sugar (1/4 cup), Baking Powder (2 teaspoon), and Salt (1/2 teaspoon) together in a medium bowl.
In a separate bowl, whisk together the Whole Milk (1 cup), Buttermilk (1/2 cup), Yolks of the Egg (2), Butter (1/2 cup), and Vanilla Extract (1 teaspoon) and add to the dry mixture. Stir to combine.
Whisk the Egg Whites until foamy and add the Cream of Tartar (1/8 teaspoon). Whisk until the egg whites form soft peaks.
Gently fold the egg whites into the batter.
Spray the preheated waffle maker with non-stick spray, and pour batter in. Set to highest heat. Flip over after a few minutes. Waffles are done when they are golden. Immediately place on a cooling rack to keep crispy.
For the chai-spiced maple syrup, place the Maple Syrup (1 cup), Water (1/4 cup), Butter (2 tablespoon), Ground Ginger (1/2 teaspoon), Ground Cloves (1/4 teaspoon), Ground Allspice (1/4 teaspoon), Ground Nutmeg (1/4 teaspoon), Ground Cardamom (1/4 teaspoon), and Ground Cinnamon (1 pinch) in a saucepan over medium/high heat.
Bring to a rolling boil and then set the timer for 4 minutes. Remove from heat and cool until warm.
Serve the waffles with the maple syrup and some whipped cream if desired!