12 ounces mini chocolate candy bars, such as Reese's, chopped into 1/2-inch
Preheat the oven to 275°. In a bowl, combine the pretzels with the sugars, milk powder and butter. Spread the mixture on a parchment paper–lined baking sheet and bake for about 20 minutes, until fragrant and lightly browned. Let cool completely. Transfer to a bowl and mix with the candy.