Preheat oven to 350. Line a baking sheet with parchment paper and set aside.
In a large bowl, toss pretzels with melted butter. Stir sugar and cinnamon together in a small bowl before tossing with buttered pretzels. Spread in an even layer on prepared baking sheet and bake 12 minutes. Remove from oven and cool 10 minutes.
In a small bowl, melt vanilla candy melts until smooth. Pour into a squeeze bottle and drizzle over pretzels. {Or drizzle with a spoon.}
After about 5 minutes, the candy melt should harden and you can serve!