Preheat oven to 350F, Line 2 large baking sheets with parchment paper, spray with pan spray. Set aside.
In a large bowl, combine the flour, mini chocolate chips, baking powder, baking soda, and salt. Set aside.
In a separate bowl, whisk together sugar, eggs, peppermint extract, and a little food colouring until well combined and smooth.
Pour into the bowl with the dry mixture, stir to combine.
If you’d like a bit more colour, knead in a bit more food colouring.
Divide dough in half, form into 2 long, wide loaves on the prepared pan.
Bake for 20-25 minutes, until golden brown on the outside. Remove from oven, turn heat down to 250F.
Allow loaves to cool for 5 minutes.
Cutting on a slight diagonal, slice each loaf into ½" slices.
Arrange slices on the pans - still lined with parchment. Bake for 15 minutes, flip each piece over and bake for another 15 minutes, or until desired texture.
Remove from oven, allow to fully cool.