Black-bottom coconut bars pair a gooey coconut topping with a rich brownie base for a treat that will please coconut lovers and chocolate lovers alike!
Melt the butter in the microwave inside a microwave-safe mixing bowl. Whisk in the sugar and salt, followed by the egg, then the cocoa powder and flour.
Spread the brownie batter into the prepared pan and bake for 10–15 minutes, or until the edges begin pulling away from the sides of the pan. Set aside to cool.
Drop mounds of the coconut mixture onto the chocolate base. Spread it evenly, then press it gently so it sticks. Sprinkle the reserved coconut over the top.