Trying to make puppy chow and my chocolate mixture turned to cement?

Hi all. I'm trying to make puppy chow and followed the directions on the back of the chex cereal box perfectly but I used milk chocolate instead of semi sweet. When I went to melt the chocolate/peanut butter/butter mixture on the stove it melted into a thick cement like mixture. Is it because I used milk chocolate instead of semi sweet? I tried it again but in the microwave because that's what it says to do on the box but I had the same outcome. I may sound dumb but I don't understand how these 3 things became such a thick monstrosity. Thanks for your help.

submitted by /u/King_of_Krotch
[link] [comments]

from AskCulinary https://ift.tt/3xCC5eY