Step 1

Start by greasing a 9x13" baking pan with non-stick cooking spray. Set aside.

Step 2

In a large pot, melt the butter on low heat. Once melted, add in the marshmallows. You can add them in small increments to avoid overflowing. Stir the marshmallows until they're completely melted.

Step 3

Remove the pot from the heat and stir in the creamy peanut butter, vanilla, and salt.

Step 4

Add the rice krispies cereal in small increments and stir until sticky and coated. You don't want to have dry cereal left, it should be a sticky mixture.

Step 5

Add the mixture to the greased baking pan. Use a spatula or your hands to gently press the mixture evenly around the pan and into the corners. Don't press too hard or your treats will become flat and tough.

Step 6

Let the treats cool in the pan for about 30 minutes before slicing and serving.