From A Treasury of Knitting Patterns* by Barbara Walker.
With this version of Double Brioche, you'll get the same results as the original version if you brSl
into each brSl
as follows: knit the slipped portion of the brSl
, and slip the yarn over portion.
See also this Ravelry discussion.
*Affiliate link. Buy the book and I get a couple pennies.
Shown with a cast-on count of 4 stitches.