First melt the butter in a saucepan, pour the corn, cover with a lid and start cooking over medium-low heat.
When you hear the first pops, start shaking the saucepan every now and then (taking care to keep the lid firmly in place), so that the popcorn does not burn.
Once the crackling is finished, open the lid and salt immediately.
Then start preparing the biscuits: work the butter with the two types of sugar until creamy.
Incorporate first egg and vanilla and finally also flour and baking soda.
At this point, also add the popcorn, mixing them gently with the mixture.
With a spoon or with wet hands, create the biscuits on the oven tray lined with parchment paper, spacing them well apart.
Then cook for about 10 minutes (or until the edges are golden brown) in a preheated convection oven at 180 ° C.
Popcorn cookies are ready, let them cool before enjoying them.
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