This has become our only playdough recipe. We haven't had it go bad on us as my daughter always mixes the colors and we end up throwing it out to make new colors before it has a chance. We hope you enjoy this recipe as much as we have.
I frequently have my toddler add my dry ingredients as I measure and stir it all together. Once the water comes to a boil I get to do the final stir, add the hot water, and then mix it all together (as it's too hot). If I separate the dough into bowl to make separate colors I always break up the dye, mix it until it cools, and then depending on if I have help either knead it on the counter or pass it to Ada to mix while I go onto the next color.
Add boiling water to the bowl. If you're afraid of it being too wet add a bit less. You can always add more later.
Once it gets harder to stir I dump it out and once cool enough knead it. If it's really sticky you can always flour the surface first so it doesn't stick too badly.
If too sticky and wet add more flour.
See the notes below for a variety of options on when to add the food dye and/or flavor extracts for scents.
You can add them at the same point as the dye in step two and three above. If you want multiple colors and one scent you can add the extract with the water (step 2), mix the dough, separate, and add the dye (step 3). If you want multiple colors with each their own scent you can do it at the same time as the dye (step 3).