You will need 12 oz. of bar soap, one box of Borax, and one box of washing soda as well as a container to put the finished soap in. I was a little bit short of washing soda, so I used some baking soda to make up the difference. Not perfect, but it worked just fine.
Grate all the soap up like shredded cheese. I love using my salad shooter for this.
Then add the washing soda
and the borax.
Mix thoroughly. 
Scoop into your container of choice. I use half-gallon canning jars.
Use 1/8 to 1/4 cup per load of laundry depending on load size. You can use up to 1/2 cup on very large, very dirty loads.I would like to say a special thank you to my helper and nephew, Jesse. He spent a week with us this summer when school got out. He is a joy to have in our home!
