Directions:
Step 1: Brush with melted butter an 8×8-inch baking dish. Make sure to measure all the ingredients first before you start.
Step 2: Place a saucepan on the stove and turn the heat to medium.
Step 3: Add the milk and sugar. Stir and allow the mixture to boil until bubbly. This will take about 2 1/2 minutes.
Step 4: Remove the saucepan from the heat.
Step 5: Add the vanilla extract into the pan and stir until well combined.
Step 6: Add in the peanut butter and stir until well mixed and smooth.
Step 7: Transfer the mixture into the prepared baking dish and spread it evenly. I use a spatula to make sure it is flat on top.
Step 8: Let the baking dish sit at room temperature to cool for several minutes.
Step 9: Slice the fudge into even pieces.
Step 10: Serve and enjoy!