FOR THE BROWNIE LAYER:

Process the walnuts and oats (if using) until broken down into a meal consistency.

Add in the dates, cocoa, and salt, and process until combined.

Add in a bit of water, if needed, to bring it all together.

Divide the mix between four small mason jars or glasses.

Press into the bottom of the jar.

FOR THE 'ICE CREAM' LAYER:

Process all of the ingredients until smooth (STIR in the chocolate chips, if using).

Divide the mixture between the four glasses and pour atop the brownie layer.

Set into the freezer until the ice cream is somewhat set (just enough so that it won't mix with the top layer).

FOR THE CHOCOLATE SHELL:

In a small bowl, mix the ingredients together until smooth and well combined.

Divide the mixture between the four glasses and pour atop the ice cream layer.

Place back into the freezer until the top chocolate shell is firm to the touch.

Top with coconut whipped cream, cacao nibs, etc.

Grab your spoons and enjoy!