01 -
Line a 9x9-inch pan with parchment paper, leaving overhang on two sides for easy lifting.
02 -
Melt 1 cup of the chocolate chips in 15-second microwave bursts, stirring between each, until smooth. Spread into an even layer in the prepared pan.
03 -
Arrange the pretzels over the soft chocolate and scatter the peanuts into the gaps. Press gently so the pieces stick. Chill for 10 minutes.
04 -
Combine the caramel bits and milk or cream in a microwave-safe bowl. Heat in 20-second bursts, stirring well, until smooth. Let cool for 3-5 minutes.
05 -
Spoon the caramel over the pretzel layer and spread it into the gaps with an offset spatula or the back of a spoon. Refrigerate for 45-60 minutes, until firm.
06 -
Melt the remaining 1/4 cup chocolate and drizzle it over the caramel. Sprinkle with flaky salt, chill 15 minutes more, then lift out and cut into 16 bars.