Add the peanuts, vanilla almond bark, milk chocolate chips, and peanut butter chips to the crockpot.
Cover the crockpot and set to low for 1 ½-2 hours, stirring halfway through.
Line a sheet pan with parchment paper.
Scoop a heaping tablespoon of the peanut mixture onto the sheet pan, leaving space between each candy.
Let the chocolate set for at least one hour before removing and serving.
Notes
Lightly salted peanuts: The salt helps to balance out the candy. However, you can use unsalted peanuts and add a pinch or two of kosher salt instead. You could also swap out the peanuts with another type of nut like almonds or cashews.
Vanilla almond bark: You could use white chocolate chips instead.
Milk chocolate chips: For candy that isn't as sweet, substitute semi-sweet milk chocolate chips or dark chocolate chips.
Peanut butter chips: Butterscotch or caramel chips would also work.