In a food processor, pulse 3 cups walnuts, cacao, lions mane, cinnamon, and salt into a fine crumble. This should be fine, but not so much that it starts to clump together.
Transfer dry mix to a medium size bowl.
Add the dates, ½ cup of the date water, vanilla, coconut oil, and honey to the food processor.
Pulse a few times, and scrape down sides. Then continue to puree into a smooth paste.
Add paste to dry mix and with a spatula mix well until it is all incorporated.
Line a 9 x12 dish with parchment paper.
Press brownie into the dish.
Add ½ more cup walnuts to the food processor and pulse into a crumble.
Top brownie with walnut crumble
Cover and refrigerate for 1 hour or place in freezer for an additional time to set.
Once brownies have set, gently lift the edge of parchment paper to pop them out.
Cut into squares, and enjoy!
Store in the refrigerator for up to 3 weeks, and in the freezer for months.
Recipe by HormonesBalance.com at https://hormonesbalance.com/recipes/no-bake-brain-boosting-brownie/