I had previously posted a laundry soap recipe that did not work out at all. It was all the same ingredients but it was in liquid form and I believe that with the water in the detergent and pl;u the water being added to the washer itself- my problem was I needed a higher concentrated detergent. I am posting the dry version here.
Same measurements as well as ingredients (minus the water).
Grate the bar of soap into your mixing bowl.
Mix well with a spoon.
Add to air tight container. I used a recycled spaghetti jar that was a perfect fit. This solution should only need a tbs per load.