In medium bowl combine together salt, baking powder, cocoa powder and flour.
In a large mixing bowl, beat the butter and sugar for4 minutes until fluffy with an electric hand mixer.
Add the egg, milk, and vanilla extract and continue to whisk. Stir in your food coloring. I find that gel coloring works best as it distributes evenly in the mixture. Add small batches at a time referring to packaging instructions.
Now combine wet and dry ingredients, fold in chocolate chips, cover and let chill in the fridge for 1 hour.
The cookie dough should resemble playdough and you should be able to easily shape it into small balls. When ready to bake, preheat the Air Fryer to 325 degrees Fahrenheit.
Take about 1 heaping tablespoon of dough and roll it with your hands into a ball. Place into air fryer basket.
Bake the dough balls for 5-7 minutes. Transfer to a wire rack to cool completely after which they can be stored in an airtight container.
