Line a baking sheet with parchment paper and ensure apple pieces are dry.
Microwave chocolate chips in 20-second intervals, stirring until smooth.
12 oz semi-sweet or milk chocolate chips
Spread 2/3 of the melted chocolate onto the parchment into a 1/4-inch thick rectangle.
Arrange pretzels on the melted chocolate, then the apple pieces on top, pressing gently.
1 cup pretzels, 1 large green apple
Drizzle caramel sauce over the apples and pretzels then drizzle with the leftover melted chocolate (quickly microwave again if needed). Lightly sprinkle with sea salt.
1/4 cup caramel sauce, Sea salt
Refrigerate for 30 minutes, until set.
Break into pieces and serve or store in the fridge.