Microwave chocolate chips until soft (try stirring them after about a minute in the microwave, they sometimes keep their shape despite being melted.)

Add smooth peanut butter to your taste, microwave again for another 30 to 60 seconds, stir to combine, pour in chex mix, gently stir to coat the cereal

grab a gallon size ziplock, add excessive powdered sugar to ziplock (the extra will fall off the cereal into the bottom of the bowl), add chocolate peanut butter coated cereal to the ziplock, seal ziplock and shake the snot out of it,

Pour into your potluck bowl or take the bag as is.