Preheat the oven to 340F/170C and line an 8x8 in square baking pan with parchment paper.
Throw everything except the chocolate chips into a high powered blender or food processor, and blend until completely smooth. Stir in the chocolate chips.
Pour the mixture into the baking pan and smooth out with a spatula.
Bake in the oven for 15-18 minutes. Let them cool in the pan for at least 10 minutes before serving.