Preheat oven to 350 degrees. Line an 8 inch baking pan with parchment paper.
In a medium saucepan over medium-low heat, melt 1/3 cup chocolate chips and 1/4 cup cashew butter. Or melt in the microwave, One minute is usually sufficient.
When melted, remove from heat. Add in sugar, syrup, and pinch of salt, and whisk together.
Measure out the aquafaba and whisk until slightly foamy.
Pour the aquafaba into the chocolate mix and whisk together.
Add vanilla, cinnamon, and carob and whisk to incorporate.
Add the flour to the chocolate mix and mix well. Fold in 2/3 cup chocolate chips.
Pour the brownie batter into the prepared pan. Bake for 35 minutes. The brownies should be moist but set.
Remove from oven and cool for about an hour before serving.
May be served with vanilla nice cream. Store in fridge. Or in your stomach ;)