Preheat the oven to 350 degrees.
In a large bowl, mix the oat flour, almond flour, and cacao powder.
Add the date paste, applesauce, and nondairy milk, and stir until thoroughly combined.
Pour the cake batter into a nonstick or lined circular pan, and bake for 30 minutes.
While the cake cools, make the cookie dough frosting.
In a food processor, mix the chickpeas, dates, oats, and water, scraping down the sides and adding water as necessary until it's thoroughly combined and thick.
Put the cookie dough into a bowl and stir in chocolate chips.
When the cake is cool, pipe or spread the cookie dough frosting on top.