Add cooled popcorn to a very large bowl and remove any unpopped kernels.
In a microwave-safe bowl, melt white chocolate chips and coconut oil in 20–30 second intervals, stirring until smooth.
Stir in banana extract and vanilla extract until fully combined.
Pour the melted mixture over the popcorn and gently toss until evenly coated.
Let the popcorn sit for 2–3 minutes, until the coating becomes slightly tacky.
Fold in the crushed vanilla wafers.
In a small bowl, mix powdered sugar, banana pudding mix, and a pinch of salt.
Sprinkle the banana pudding sugar over the popcorn while tossing to coat evenly.
Spread the popcorn onto a parchment-lined baking sheet in a single layer.
Let set for 15–20 minutes, or until the coating is firm.
Break into clusters and serve.