Start by lining a baking sheet with a sheet of parchment paper, and smooth it flat so there are no bumps. I always tape down the corners lightly because a shifting sheet makes it harder to keep the pretzel circles neat. This little prep step saves a lot of frustration once the melted chocolate is in your hands.
Take 8 pretzel sticks and lay them out in a circle, with one end of each pretzel touching in the center, like spokes on a wheel. Repeat this for each web you're making, spacing the circles a few inches apart on the tray. This spoke pattern is what gives the finished treat its signature spider web look.
Place your white chocolate wafers in a microwave-safe bowl with 1 teaspoon of coconut oil. Microwave in 20-second bursts, stirring between each one, until it's completely smooth and pourable. Going slow here matters, because chocolate can seize or scorch if it gets too hot too fast.
Spoon the melted white chocolate into a piping bag or a zip-top bag and snip off a tiny corner. Starting at the center where the pretzels meet, pipe a small circle to anchor everything together, then spiral outward until you reach the tips of the pretzel sticks. This is the moment your pretzel spokes officially become a web.
While the chocolate is still wet, take a toothpick and gently drag it from the center outward along each pretzel line. This pulls the chocolate into those classic thin, radiating web strands you see in store-bought decorations. Don't rush this step, since a wet, workable chocolate gives you the crispest lines.
Melt your dark chocolate the same way you did the white chocolate, then dot a small circle onto the web for a spider body, adding thin drizzled legs around it. Press on candy eyes while the chocolate is still soft, and scatter over your Halloween sprinkles for extra sparkle. This is where each web gets its own spooky personality.
Slide the baking sheet into the refrigerator for at least 45 minutes to an hour, or into the freezer for about 15-20 minutes if you're short on time. Once firm, carefully peel each web off the parchment paper. They're ready to eat, gift, or arrange on a Halloween dessert table.