Add the popcorn and spread out in an even layer ... Put the pan over a medium–high heat until the first kernels begin to pop, shaking the pan from time to time to turn the kernels over.
Dried corn kernels are readily available from most supermarkets. Commercially-produced ready-to-cook popcorn kernels are also available, sealed in bags that you just put in the microwave.
Microwave on high and allow the kernels to pop. Season the popped popcorn generously with sea salt. Mix the crushed biscuits and melted butter until the mixture resembles damp sand. Grease a 20 cm ...