But I did, I did, I did! It was boiling water 120g with Borax 62g. I stirred and stirred and it would dissolve so i added 30g more boiling water.Dissolve Borax in boiling water. Use some of the water used to make the Lye Solution. Once dissolved add it to the warmed oils before adding the lye solution.
ETA: Borax is SO finicky! Once dissolved, it particulates out and settles to the bottom, hard as a rock and next to impossible to break up and re-use. (Don't ask how I know that... )
I read somewhere later that you should add a little borax at a time to the boiling water, so next time I might try that. Add two teaspoons, stir until dissolved, then add two more.. etc.