This tutorial is not a step-by-step tutorial but rather the instructions
for 2 ways to work the ripple and also instructions to work the ripple
with the Cro-Hook.

These instructions will form the ripple looking somewhat like the letter "W":

Chain a multiple of 14 + 1.
The image below (in the Cro-Hook section) is worked on a chain of 29 loops.

Stitch used: TSS -Tunisian Simple Stitch -also known as Basic Afghan Stitch.

Row 1: Basic Forward and Return.
Row 2: With 1 loop on hook, *inc 1 TSS, TSS in each of the next 5 loops, TSS3Tog,
TSS in each of the next 5 loops, inc 1 TSS, TSS in next loop. Repeat from * across.
Work normal Return Row.
Repeat Row 2 for Pattern.
Finishing: Work a Forward Row in pattern using the slipstitch instead of TSS.

 

These instructions will form the ripple looking somewhat like an inverted letter "W":

Chain a multiple of 14 + 1.
The image below (in the Cro-Hook section) is worked on a chain of 29 loops.
Row 1: Basic Forward and Return.
Row 2: With 1 loop on hook, Work 1 slipstitch,*TSS in each of the next 5 loops,
inc 1 TSS, TSS, inc 1 TSS, TSS in each of the next 5 loops, TSS3Tog.
Repeat from * across row. Work normal Return Row.
Repeat Row 2 for Pattern.
Finishing: Work a Forward Row in pattern using the slipstitch instead of TSS.

 

Using the Cro-Hook

Remember: Tunisian Crochet creates a one-sided fabric.
The work is not turned at the end of the row.

Cro-Hook crochet creates two-sided fabric because the work is turned every 2 rows. For example: Row 1 Forward and Return, Row 2 Forward and Return.
Even if 2 colors are used, the fabric is still one-sided.

Cro-Hook Technique :
Chain a multiple of 14 + 1. Sample below uses chain 29 to start.
Row 1: Work a Basic Forward Row. Slide stitches to other end of hook and turn the hook.
With second color, form a slipknot in the end of the yarn
and place loop on hook. Pull this loop through the first loop on hook.
Continue with Row 1 Basic Return Row.

Work a Row 2 Forward Row using either pattern above.
Slide stitches to other end of hook and turn the hook.

So...
Work a Return Row, then a Forward Row with one color,
slide yarn to other end of hook.
With second color work a Return Row, then a Forward Row.

Notice that one side of the cro-hook fabric is predominately the first color,
and the other side is predominately the second color.

Finishing: Work a Forward Row in pattern using slipstitch instead of TSS.