Line 8 x 8 inch dish with parchment paper, leaving the paper overhang the sides so you can easily lift it later and set aside.
In a mixing bowl stir together peanut butter, melted butter, brown sugar, vanilla and salt, until sugar dissolves. Gradually mix in powdered sugar.
Press the mixture into prepared dish. Smooth the top with spatula or simply press it with your palms to flatten into about ½ inch thick layer.
Place it in the freezer until firm enough for cutting.
When the mixture is firm enough, line a tray with parchment paper and set aside.
Using Christmas tree cookie cutter cut out the trees and place them on the tray. Place them in the freezer for 45-60 minutes until completely firm.
Melt the chocolate and line another tray with parchment paper.
Using a fork, dip each tree into melted chocolate to cover completely. Gently tap the fork to drip off the excess chocolate.
Place chocolate covered Christmas trees on the parchment paper lined tray. Refrigerate until chocolate has set.
Store in the fridge or freeze for longer storage.
