The recipe requires borax:

1 cup Borax
1 cup Super Washing Soda
1 cup Citric Acid
1/2 cup salt30 drops essential oil (bacteria buster oils)

Mix all the ingredients together with a wire whisk.  I let the bowl sit overnight to dry the essential oil out, if you put it in a sealed container right away it will harden. I went through many versions of this detergent before I figured that one out.  If it does harden, just break it apart and throw the chunks of detergent in with the laundry, it will still work great.  Once dry and powdery, place in a container (glass works best) and use 1 Tbsp. per load if you have soft water or 2 Tbsp. per load for hard water.   I also pour vinegar into the water softener section of my washer with a few drops of lemon essential oil and use an herbal laundry sachet in the dryer instead of using dryer sheets.

I have made a variety of diy versions of home products, but haven't attempted laundry or dish soap yet.  But I've been reading up on checking out various recipes for quite a while now.  One thing that I've learned is that when a homemade detergent recipe includes both basic and acidic ingredients, the author is clueless and the recipe should not be trusted.  This is such a recipe -- the borax and washing soda are basic, while the citric acid is acidic.  To the extent these will neutralize one another, they will produce a salt with no effect.  This recipe still has more bases than acids, so it may remain a mildly effective laundry soap.  There are much better recipes out there, however.