Preheat oven to 200°F and spray a large roasting pan with nonstick spray. Spread puff

corn in an even layer into a prepared roasting pan and set aside.

Combine butter, corn syrup, and brown sugar in a saucepan over medium heat. Bring

mixture to a boil, stirring occasionally. Let boil for 5 minutes before removing from heat.

Add vanilla, baking soda, and salt, and stir to combine.

Pour mixture over puff corn and stir to coat thoroughly. Spread puff corn into an even

layer and bake for 1 hour, stirring every 15 minutes, until puff corn is crisp.

Spread puff corn onto wax or greased parchment paper and cool completely. Store in an

airtight container.