C.B.
I just made a batch last night. Here's my recipe:
One bar of any soap (I use Dial's cranberry soap - wonderful smell)
One cup of Borax
One cup of Washing Soda (Arm & Hammer makes this)
Shred bar of soap. Dissolve in small amount of boiling water. Add 3 gals. of water. Add Borax and Washing Soda. Stir until dissolved. (I found it dissolves better if I keep some heat under it for about another 5-10 minutes.)
Let cool, stirring occasionally. It will thicken as it cools.
I use milk containers, but you can use old laundry soap containers.
FYI, the first time I made this, it was clumpy, but that had no effect on its ability to clean and it rinsed out thoroughly.
I found out the hard way that 3 gallons of finished laundry soap is ALOT. Unless you have several large kettles to make this in and containers to store it in, I recommend that you cut the recipe down.
Most suds come from additives. There are very few suds with this recipe as the only thing that bubbles is the bar soap.
Good Luck!