Preheat the oven to 350 F. Line one cookie sheet with parchment paper and set aside.

In a small bowl mix 1 tbsp of ground flaxseed and 3 tbsp of lukewarm water. Let sit while you prepare the rest of the ingredients.

In a large bowl, whisk together all-purpose flour, cocoa powder, baking soda, and salt.

In a bowl of an electric mixer, add brown sugar, regular sugar, and butter. Whisk together until light and fluffy. To the whipped butter/sugars mixture, add flaxseed mixture, milk, and vanilla extract. Whisk to incorporate. Add whisked dry ingredients and mix with a spatula to incorporate. Add chocolate chips.

Divide the cookie dough into 10 even portions. Give them in a round shape and place them onto the baking sheet lined with parchment paper about 1.5-2” apart. Press on top additional chocolate chips so when the cookies are baked, they all have nice chocolate chunks on top. Bake for 10 minutes.

Let the cookies cool on the wire rack, then transfer onto the serving dish. Sprinkle with flaky salt on top as a garnish.