Place 1 cup of warm water in a large glass measuring cup.
Stir in Metamucil until fully dissolved, use a whisk and be sure to mix it up well.
Microwave mixture on high for 5 minutes, stopping about every minute and a half to give it a good stir. Keep an eye on it and be sure that it doesn't overflow, a quick stir and a few seconds out of the microwave should cool it enough to make it go down.
Once the five minutes up, remove from the microwave and stir it well, as you stir you will see the slime really begin to form and get take on the perfect slime texture.
Your mixture will be very hot, allow to cool, to speed up the process pour it out onto your work surface and let it cool that way.
While it has an orange smell to it already, it is not very strong, you can add a few drops of essential oil to make it stronger, just add a few drops to the slime and knead it in with your hands once cool enough to touch.