Pop the popcorn in the microwave. Separate the popped corn into a large bowl, removing all the unpopped kernels.

Melt the butter in a large stockpot over medium heat.

Add the marshmallows and brown sugar and stir until all the marshmallows have melted.

Add the popcorn to the pot. With a wooden spoon, stir until all the popcorn is coated.

Add the chocolate chips and craisins and continue to stir until the chips begin to melt slightly. If you think the mix is too sticky, add a little more popcorn.

Remove from heat and allow to cool for about 5 minutes.

Line a baking sheet with waxed paper. Roll the mixture into 2-inch balls. You may need to butter your hands.