Step 1

Add water, baking soda, and dish soap to the pressure cooker pot.  Slosh the mixture around to combine the ingredients.

Step 2

Secure the lid and turn pressure release knob to a sealed position.  Cook at high pressure for 3 minutes.

Step 3

When cooking time is complete, use a natural release.

Step 4

The charred residue will now be floating in the soapy liquid.  Discard pots contents, give it a quick scrub with a brush if needed, and viola!  Pot is like new!