add-ins: nuts, candies, etcoptional (see post above for more suggestions
Instructions
Line an 8-inch or 9-inch square baking pan with aluminum foil or parchment paper. Leave an overhang on the sides to lift the finished fudge out.
In a large bowl, melt the peanut butter and butter in the microwave at 30 second increments. Stop the microwave and stir the mixture every 30 seconds until completely melted and smooth.
Remove the bowl from the microwave and stir in the vanilla using a large rubber spatula or wooden spoon. Add the salt if you want.
Add the sifted confectioners’ sugar and stir until completely combined. The mixture is very thick and resembles cookie dough. If using any add-ins, fold them into the fudge while it is still warm.
Press the fudge into the prepared baking pan and smooth the top with the back of a spatula or spoon. The top will be shiny/oily. Cover the baking dish tightly with aluminum foil and chill for at least 4 hours or until firm. Cut into pieces.
Store fudge in an airtight container in the refrigerator for up to 1 week.