Preheat oven to 350° Fahrenheit and grease a 8"x8" glass baking dish.
In a saucepan, combine the coconut sugar, coconut oil, and cocoa powder.
Heat and stir over medium-low heat just until melted and combined.
Transfer to mixing bowl.
Add heavy cream powder, eggs, cassava flour, and salt; mix well.
Transfer to prepared baking dish.
Combine the heavy cream powder, sour cream powder, maple syrup, egg, and vanilla; mix well.
Spread evenly over brownie batter and swirl with a knife.
Bake for 15 minutes.
Drizzle with melted chocolate, cut, and enjoy.