This soft little textured scarf is knit from a 50% Merino/50% Silk worsted weight yarn in Seeded Rib:
Cast on a multiple of 4, plus 3 extra stitches.
1st row: (K3, P1) to the end of the row (ending on a K3)
2nd row: K1, P1, (K3, P1) to the end of the row (ending with K1)
Repeat these two rows until the scarf is long enough, then bind off.
This non-aligned K3,P1 pattern gives you a column of garter, a column of stockinette, a column of garter, and a column of reverse stockinette.
Amy calls this the Beethoven Rib. Da, Da, Da, DUM! K, K, K, P!