Step 1

Prep: Spray an 8 x 8 inch baking dish with cooking spray and line it with parchment paper, leaving a 2 inch overlap on the sides, so you can easily pull the fudge out.

Step 2

Make fudge: In a medium saucepan, add the butter, milk, brown sugar and melt over medium heat until the sugar dissolves. Remove from heat and dd the peanut butter and stir continuously until smooth.

Step 3

Finish the fudge: Add the vanilla extract, salt and stir. Stir in all the powdered sugar until fully incorporated.

Step 4

Transfer to pan and set: Transfer to the prepared baking dish and smooth the top with a spatula. Sprinkle with chopped peanuts if preferred. Refrigerate for about an hour or until it sets.

Step 5

Cut and serve: Cut into pieces and serve.