First, I got this recipe (#1) from here: Tipnut.
Let's get on with it!
What you'll neeD:
Some empty containers to put the finished detergent, like ice cream buckets, or 2 qt juice bottles
A funnel if using juice bottles
A big bucket measured & marked to 2 gallons
A medium saucepan with about a quart of boiling water
A bar of Fels Naptha, grated (a food processor does this very quickly)
2 c. borax
2 c. washing soda
Add the grated soap to the boiling water over medium-low & stir until the soap melts.
See? No more soap chunks.
Add the borax & washing soda & stir, stir, stir.
It will be like this:
Pour this into the big bucket & add hot water to the 2 gallon line, then stir, stir & stir some more:
Let the detergent cool down enough to pour into the empty bottles without burning you or the container. Stir often while its cooling down. Using a funnel, carefully pour into bottles leaving a couple inches of head space for shaking.
As the detergent cools, it will gel up & become more opaque.
Shake or stir well before each use. You want it to be like this:
Use 1/4 to 1/2 cup per load of laundry. It is great for top loading, front loading & HE washing machines.