Preheat oven to 300F. Line a baking sheet with parchment paper.

Melt butter in a large saucepan over medium high heat. Add sugar and corn syrup and stir to combine. Reduce heat and stir until the mixture is a deep brown. Remove from heat and stir in baking soda and vanilla.

Stir in maputi until they are evenly coated with caramel, Spread onto prepared baking sheet. Bake for 20 minutes stirring every 10 minutes. Remove from the oven and allow to cool.

Enjoy right away or store in a container for up to a week.