Combine all purpose flour, baking soda and fine sea salt into bowl. Place sifter over dry ingredients and add black cocoa. Sift black cocoa onto other dry ingredients.
2 ½ cup all purpose flour, ½ cup black cocoa powder, sifted, 1 tsp fine sea salt, ¼ tsp baking soda
Use whisk to help evenly distribute dry ingredients. Set aside.
Combine butter, sugars and vanilla into a separate bowl. Then cream for about 2 to 3 minutes until light and fluffy.
¾ cup unsalted butter, softened, ½ cup sugar, ½ cup dark brown sugar, packed, 1 tsp vanilla extract
Add egg and egg white. Mix on medium low until well combined.
1 large egg, 1 egg white
Add dry ingredients and mix on low until just combined.
Chop chocolate peppermint bark and then add to cookie batter.
4 - 5 oz Ghirardelli Chocolate Peppermint Bark
Fold the peppermint bark into the cookie batter with a rubber spatula.
Use a 2 tablespoon cookie scoop to scoop out the batter and place on a baking sheet. Space about 2" apart.
Preheat oven to 350 F. Refrigerate cookies for about 15 to 20 minutes while oven preheats.
Bake for 10 minutes, or until you see cookie centers set. Remove from oven and place on wire rack to cool.