Place the first eight ingredients in a high-speed blender or food processor. Blend on high, streaming in just enough water to help blend, until smooth. Pour into a mixing bowl. Slowly whisk in the coconut flour until you reach a consistency that is spreadable but not wet. Fold in the chocolate chunks.
Slice and serving with any desired toppings, like almond butter.
If you don't let your lentils sprout, use the same amount of lentils that have been soaked for about 8 hours.