Prepare the walnuts: In a food processor, pulse the walnuts until they are finely ground, but not too powdery.

Add the dates: Add the pitted dates to the walnut mixture. Process until the mixture starts to clump together.

Mix in cocoa powder: Add the cocoa powder, vanilla extract, and sea salt. Continue to process until all ingredients are well combined, forming a dough-like consistency.

Press into a dish: Transfer the mixture into an 8x8-inch baking dish lined with parchment paper. Press down firmly with your hands or the back of a spoon to create an even layer.

Chill: Place the dish in the fridge for at least 1-2 hours to set.

Serve: Once set, cut into squares and enjoy!