
Preheat the oven to 350°F. Line an 8x8 baking dish with parchment paper, spray it with cooking spray or oil, and set aside.
Place all ingredients except chocolate chips in a blender and blend until smooth.
Pour the batter into the baking dish, then gently mix in ½ cup of the chocolate chips.
Top the batter with the remaining ½ cup of chocolate chips, and bake for 25 to 30 minutes or until the middle is just set.
Let cool for 30 minutes before slicing and serving.