Add the chopped white chocolate to the bottom of your Crock Pot.
Layer in the semisweet chocolate chips and German sweet chocolate pieces.
Pour the dry roasted peanuts evenly over the chocolate layers—do not stir yet.
Cover the Crock Pot with the lid and cook on low for 2 hours.
After 2 hours, stir everything well until completely melted and smooth.
Use a spoon to scoop small clusters onto parchment-lined baking sheets.
Let the clusters cool at room temperature or refrigerate for quicker setting.
Once hardened, store in an airtight container for up to 2 weeks.