Stir in peanut butter powder, powdered sweetener, and sea salt until well combined.
Spread mixture out on parchment paper, silicone mat, or shallow baking pan lined with plastic wrap over a little water.
If needed, cover with parchment paper and smooth out top with hand.
Place in freezer for about 30 minutes or until hardened.
Remove the peanut butter sheet from pan and cut into chip size chunks. Use immediately or store in the refrigerator.
Notes
You can add in some vanilla powder after removing from the heat. Vanilla extract with alcohol can thicken the melted mix so I don't recommend using it.Makes about 2 cups.