In a small bowl, stir together the flaxseed with 1/2 cup water. Set aside to thicken.
Preheat the oven to 350 degrees Farhenheit. Line a 9×9 baking dish with parchment paper.
Melt the vegan butter in the microwave. In a medium-sized mixing bowl, add the melted butter brown and granulated sugar.
Pour in the flaxseed mixture and peppermint extract. Stir until combined.
Add the all-purpose flour, cocoa powder, baking powder and salt and sit until combined.
Fold in the dairy-free chocolate chips and crushed cane canes. Scoop the batter into the parchment-lined dish. Top with extra crushed candy canes and chocolate chips.
Bake for 35-40 minutes. The brownies may not look done, but they will firm up as they cool. Remove the brownies from the oven and let them cool in the dish for 20 minutes. Then remove them by lifting up the parchment paper and let them cool an additional 30 minutes before serving