Sample knit with worsted weight yarn, US size 6 needles
Multiple of 2
Cast on using Color A
Row 1 (RS): Color A - *Sl 1 wyif, K1*
Row 2: Color B - *Sl 1 wyib, P1*
Row 3: Color C - Repeat Row 1
Row 4: Color A - Repeat Row 2
Row 5: Color B - Repeat Row 1
Row 6: Color C - Repeat Row 2
Sample knit with Mulberry and Merino on US #6 needles
Some notes on Brioche Knitting:
100% wool or wool blend yarn (not superwash) is the best choice, or mohair, or any yarn that has a 'sticky' quality.
This stitch creates a very stretchy, airy fabric so you can use a smaller needle than called for on the ball band.
Be sure the cast on and bind off are loose so the edges will stretch with the fabric. Try casting on and binding off with a larger needle than the one used for the main part of the fabric.
The yo-sl 1 are worked in one movement; you carry the yarn over the needle as you are slipping the stitch. The yo/slipped stitch are counted as one stitch, not a separate yarn over and a slipped stitch.
When working the slipped stitch and yo together, you are making the brioche knit stitch.
Cast on an even number of stitches
Set up row: *yo-sl 1, k1*
Pattern Row: *yo-sl 1, K2tog*
Repeat from Pattern Row
Below is the video. I of course show Continental, and also stumble through English style. If you like Brioche, you may want to check out Nancy Marchant's book, Knitting Brioche. She also has a class over on Craftsy, Explorations in Brioche Knitting.