NEW Liquid Recipe (no grating!):
Makes one gallon
Pour the ingredients in an empty gallon jug. Using a small plastic funnel helps.
Pour 4 cups of VERY HOT tap water into the jug (does not need to be boiling). Swirl each bottle until all of the ingredients are dissolved.
Fill the rest of the jug almost to the top with cold water. Bubbles will overflow out of the bottle.
This is a very thin recipe, but works just as well. Works fine in HE washers, very low to no suds. You may end up using more than the thicker versions, but all is needed is 1/2 cup per load.
This ends up costing around 17 cents per gallon!
Thanks to One Good Thing By Jillee for the recipe.