In a microwave-safe bowl, combine the natural peanut butter, honey or pure maple syrup, pure vanilla extract, and a pinch of salt. Microwave the mixture for 30 seconds to soften the peanut butter and make it easier to mix. Stir the mixture until everything is well combined and forms a smooth, slightly thick peanut butter filling.
Mix in the crushed cornflakes into the peanut butter mixture.
Line a square baking pan or a similar-sized container with parchment paper. Transfer the peanut butter mixture to the pan, pressing it down with a spatula to create an even layer. Place the pan in the refrigerator for about 30 minutes or until the peanut butter mixture is firm.
Melt the dark or semi-sweet chocolate chips in a microwave-safe bowl. Microwave in 30-second intervals, stirring in between, until the chocolate is completely melted and smooth.
Cut the chilled peanut butter filling into small bars or bite-sized pieces. Using a fork or toothpick, dip each peanut butter piece into the melted chocolate, ensuring it is fully coated. Allow any excess chocolate to drip back into the bowl. Place the chocolate-coated pieces on a parchment-lined tray or plate. Let the chocolate set by placing the tray in the refrigerator for about 15-30 minutes. Your homemade healthier Butterfingers are now ready to be enjoyed!