Line an 8x8 pan with non-stick foil or wax paper.
Combine chips and dulce de leche in a saucepan.
Heat over low heat, stirring regularly, until the caramel is super soft and the chips are mostly melted.
Remove from heat and stir in pretzels, peanuts, and vanilla.
Pour into prepared pan and refrigerate 2-4 hours till set.
Cut into pieces and enjoy!