Place seeds in a colander and remove any pumpkin pulp by hand. Then rinse the pumpkin seeds with water.
Lay out the seeds on a towel to dry. You want them bone dry to be crispy when baked. This will take about 1 hour**
Bake pumpkin seeds
Preheat oven to 300 degrees and line a baking sheet with parchment paper.
Toss pumpkin seeds in 2 tablespoons of melted butter.
Spread out on baking sheet in an even layer. Sprinkle with salt.
Bake for 10 minutes and give the seeds a good stir on the baking pan.
Bake for an additional 10 minutes (you want the outside to begin to slightly brown).
Toss in cinnamon sugar
Remove pumpkin seeds and place in a small bowl.
In a medium sized bowl melt the remaining 1/2 tablespoon of butter. Stir in cinnamon and brown sugar. Pour in the pumpkin seeds and toss until evenly coated.
Return the pumpkin seeds to the baking sheet. Spread evenly and bake for an additional 5 minutes.
Allow to cool for a few minutes and enjoy every crispy bite!
Notes
*A large pumpkin will yield about 2 cups of seeds. A medium sized one will produce 1 cup. Cut the ingredients in half if your pumpkin only has 1 cup of pumpkin seeds.**If you leave them out to air dry it will take about an hour. If you want them to dry quicker, place them on a baking sheet in a 200 degree oven and stir every few minutes until dry.Store in an airtight container on the counter for up to a week (although they likely will not last a week). Wait until they are cooled completely to place into the container.