Step 1

Grease a 8x8” or 9x9" square pan, set aside.

Step 2

Melt butter in a large, deep sauce pot (5 quarts) over low heat.

Step 3

Once butter is mostly melted, add marshmallows and stir until smooth (this takes about 3-6 minutes).

Step 4

Once butter/marshmallow mixture is smooth remove the pan from the heat, add vanilla extract and stir to combine.

Step 5

Add crispy rice cereal and sea salt to the large pot with the marshmallow mixture and mix until combined. (If desired, at this point you can add mix-ins like sprinkles M&Ms, etc.)

Step 6

Quickly pour the rice crispy treat mixture into the prepared pan.

Step 7

Use a greased spatula or greased hands to gently press the rice crispy treat mixture into the pan until the top is level.

Step 8

If desired, at this point you can add sprinkles, chocolate chips, etc. to the top. Just be sure to gently press them onto the top of the rice crispy treats.

Step 9

Allow the rice crispy treats to sit at room temperature until cooled, about 1 hour.

Step 10

Cut into 9 or 16 squares and serve!