Made these last year, they are awesome. Preheat oven to 200 degrees. Line baking sheet with parchment or silicone baking sheet. Place Hershey Kiss on pretzel on baking sheet. Heat 4-5 minutes (Kiss will still hold shape, it should not melt). Remove from oven and top with MMs Refrigerate until set, about 5 minutes. Store in airtight container.