Put it on the stovetop and heat it, sitrring occasionally, until the soap has melted.
Remove from heat and stir in 1 cup of washing soda and 1 cup of borax
Now you need to fill your bucket (mine is a 3 gallon, but I have actually made up to 5 gallons with this same recipe. smaller bucket= thicker gel larger = not quite as thick) 1/4 full with hot tap water.
You are now going to add your soap mixture to the bucket of hot water and stir. Then fill the bucket the rest of the way up with cold water. Stir.
Let cool and use. I use 1 cup per load. Now, this makes a thick gel so to make it easier to use what I do is start filling the washer with Hot water. Add your cup of soap and swish it around with your hand. Now you are ready to turn it onto what ever setting you are going to be using and add your clothes. I have figured out that each load of laundry costs appoximately $.03. Even cheaper when I use my own lard soap!Pretty decent savings and it is fun to do!