Preheat oven to 300 degrees Fahrenheit; line a baking sheet with parchment paper or Silpat mat
Unwrap chocolate pieces; spread pretzels flat on the baking sheet
Place chocolate pieces inside of pretzel rounds
Melt chocolate for 2-3 minutes at 300 degrees Fahrenheit
Once chocolate is lightly melted place smaller candy pieces on top; place in freezer for about 15-30 minutes