Food process your walnuts, almond flour, and dates. If you want to make the process a bit faster, I recommend you soak your dates for about an hour before blending. After you've created the "crust" of the cupcakes, fill your cupcake holders with the walnut-date mixture. The cupcake base should have a cookie dough consistency. Now it's time to make the frosting! Add your soaked cashews(2 hours over overnight) into your high speed blender. Blend the cashews with Agave, lemon juice(add more until desired zest has been reached), and water until creamy(make sure there's a little more water than cashews in the blender.
Gently scoop your cream into the frosting dispenser, then squeeze frosting on top of the cupcake base crust.
Place cupcakes into the freezer, then take out a thaw once ready for consumption. Enjoy!