1: Preheat oven as per brownie recipe instructions.
2: In a bowl, mix ground flax with water and let it sit for about 5 minutes.
3: In another bowl, combine vegan butter, granulated sugar, and brown sugar, mixing well.
4: Add the flax mixture and vanilla extract to the sugar mixture, stirring to combine.
5: Sift in the flour, cocoa powder, salt, and baking powder, mixing until just combined.
6: Fold in the non-dairy chocolate chips or chopped chocolate pieces.
7: Pour the batter into a lined baking pan and spread evenly.
8: Bake for 25 minutes or until a toothpick comes out mostly clean.
9: Let the brownies cool in the pan for 15 minutes, then pull them out using parchment paper.
10: Allow them to cool for an additional 10-15 minutes before serving.
