The best microwave popcorn is the kind you make yourself.
Place popcorn kernels in clean brown paper lunch bag. Drizzle kernels with oil. Fold over top of bag three times to seal (do not tape or staple).
Shake bag to coat kernels with oil, place bag on its side on large microwave-safe plate, and shake kernels into even layer in bag.
Place plate in microwave and cook until popping slows down to one or two pops at a time, 3 to 5 minutes. Use oven mitts to remove plate from microwave (plate will be very hot, ask an adult to help). Set aside to cool slightly.
Place butter in large microwave-safe bowl (big enough to hold popcorn), cover, and heat in microwave at 50 percent power until melted, 30 to 60 seconds. Use oven mitts to remove bowl from microwave. Stir sriracha sauce into melted butter.
Microwave popcorn is a great idea—in theory. But most packaged options have a long list of unnatural ingredients and don’t taste very good. This fun recipe turns a plain old brown paper bag—the kind you might use to hold your lunch—into a microwave-safe package for popping corn kernels.