I want to make a simple ripple baby afgan one color and I need a pattern . I had one for 5 up and 5 down but I lost directions.
None of these patterns are one color, but they might help you. Good luck!
Crochet Classic Ripple Afghan
9 Point Round Ripple with Solid Center
Sunshine Round Ripple Baby Afghan Pattern
Found this free pattern on line: http://peanutzmomspatternplace.blogspot.com/2009/01/baby-ripple-afghan.html
It's not done in one color, but it certainly could be....and it is 5 stitches up and 5 stitches down....maybe it's the one you had.