In a large bowl cream together the margarine and sugars using a mixer on medium-high speed until light and fluffy. Be sure to scrape down the sides from time-to-time. Beat in the ground flax seeds, corn starch, water, apple cider vinegar, and vanilla. Mix for another minute.

Move the contents over to one side of the bowl. On the other side combine the flour, cocoa powder, baking soda, and salt. Stir these ingredients together and then add to the wet ingredients, using the mixer to combine. Add the non-dairy milk, one tablespoon at a time. Stir in 1 cup of the semi-sweet chocolate chips.

In a large bowl cream the margarine and sugars with a mixer on medium-high speed until light and fluffy. Scrape down the sides from time-to-time. Beat in the flax seeds, corn starch, water, apple cider vinegar, and vanilla. Use the mixer to blend these ingredients together until light and fluffy.

Move the contents over to one side of the bowl. On the other side combine the flour, baking soda, baking powder, and salt. Stir these ingredients together and then add to the wet ingredients, using the mixer to combine. Add the non-dairy milk, one tablespoon at a time. Stir in 1 cup of the semi-sweet chocolate chips.

Cover both bowls of cookie dough with plastic wrap and chill in the fridge for at least an hour. If you chill them longer you'll get a thicker cookie, which can be kind of tasty.

Heat your oven to 350F degrees and place a sheet of parchment paper on a cookie sheet.

Use a cookie dough dispenser to measure out dough balls of all the Chocolate Chocolate Cookie Dough. Clean the cookie dough dispenser and repeat this process with the Chocolate Chip Cookie Dough.

Roll the dough into balls and using one dark chocolate and one regular cookie dough ball, press the two balls together and roll them between your hands to make one large ball. Repeat this until all the cookie you're out of cookie dough balls.

Place the swirled dough balls onto your prepared cookie sheet, allowing 2" between each. Bake for 9-10 minutes in the prepared oven. When the cookies are done, remove them from the oven and allow them to cool for a minute or two before transferring to a wire rack to cool.