Preheat the oven to 350℉ and line a 6-inch cake pan with parchment paper. Place the pitted dates in a food processor and blend until they form a smooth paste (if the dates are firm, soak them in warm water for 10 minutes and drain before using). Add the cacao powder and pulse until combined and the mixture forms a dough-like ball. Add the baking powder, salt, and eggs, then pulse again until the batter is smooth, about 1 minute or slightly longer. Transfer the batter to the prepared pan and smooth the top evenly. Bake for 30 to 35 minutes, making sure not to overbake. Let the cake cool in the pan for 10 minutes before moving it to a wire rack to cool completely.

For the frosting: Whisk the coconut oil and cacao powder together until fully combined, then stir in the maple syrup and whisk until smooth. Spread the frosting over the completely cooled cake in an even layer.