Fill a small saucepan with water and place a stainless steel bowl over the saucepan. Over low heat, melt the chocolate, stirring occasionally. Turn off heat and set aside briefly until ready to use.

Liberally grease an 8x8 square pan with cooking spray and aside. Add the butter to a large saucepan set to low heat. To the unsalted butter add the dulce de leche and peanut butter. Stir until somewhat melted. If you see chunks of dulce de leche it’s OK. Add the mashed banana and quickly whisk until combined.

Add the marshmallows. Stir with a heat proof spatula until marshmallows, dulce de leche, peanut butter, and banana are completely melted. Remove from heat and add the rice krispies cereal. Mix until the rice krispies cereal is completely well coated by the marshmallow mixture.

Using a spatula liberally sprayed with cooking spray, pour and press the mixture into your prepared square pan. Pour the melted chocolate over the mixture and smooth as best you can. Place the freezer for about 10-15 minutes to set.

Once your rice treats have cooled, run a knife around the pan and invert the treats onto a cutting board or a flat surface. Cut the treats into either 9 even sized squares or 18 smaller squares.

Bring to room temperature and enjoy those bad boys.