Using a popcorn machine, pop all of the popcorn. Most popcorn machines don't have a capacity to do 3/4 cup popcorn all at once so you will need to do it in stages.

While the popcorn pops, put 1/2 cup butter in a saucepan over a medium heat.

The butter will melt, then splatter a bit so be careful. Once it is done splattering, it will start to foam.

Keep a close eye on it at this stage because it will start to brown shortly after it foams. When it is foaming you will start to smell the butter take on a nuttiness and then you will see the brown bits bubble up.

When you see that, take it off the heat and when the foam subsides, you can add it to the popcorn.

Stir the butter into the popcorn with a large flat spoon and gently stir well to coat all the popcorn with butter.

Sprinkle with a bit of Maldon Sea Salt (or other really good salt) to taste.