IN A FOOD PROCESSOR
Grate 1 bar pure soap (eg. sunlight, preservene or similar)
Then put in chopping blade and add
1/3 box washing crystals
1/3 box baking soda
Mix together and it should look like above. Add 1 heaped tablespoon per wash.
My friend Dee has another laundry recipe on her blog, so check it out by clicking on the title of this blog.