This may be called a "Tuck-in or a Bow-knot" scarf.

This little scarf uses less than 50 grams of knitting worsted. You can knit it in any type of yarn, but for an adult, I prefer worsted weight.

Row 1: Increase 1 st in the first st. K to end of row.

Repeat 1st row to 24 sts on needle.

K 19 rows in garter st.

To make slot: *K1, slip next st onto a stitch holder, keeping this stitch at the back of the work. Repeat from * to end of row. Stitches are divided, half on needle and half on stitch holder.

Working on stitches on needle, work 16 rows in k1, p1 ribbing. Break yarn, and leave these sts on a spare needle.

Slip stitches from holder and work 16 rows in k1, p1 ribbing. Do not break
yarn.

Next row: (To close slot and increase stitches). *K tog 1 stitch from needle and 1 stitch from spare needle. Knit next stitch from front needle, then next stitch from back needle. (This increases 1 stitch.)

Repeat from * until there are 2 stitches left on each needle. (K tog one stitch from each needle) twice. 17 stitches on needle.

K even in garter stitch until work measures about 12 inches from slot closing. (I tend not to measure this, but to wrap it around my neck to make sure that it is long enough when stretched slightly.)

Next row: *K1, K2tog Repeat from * to last two sts. K2. (12 sts)

Work 16 rows in K1, P1 ribbing.

Next row: Increase 1 st in each st across row.

K 19 rows garter stitch.

Next row: K1, K2tog, K to end of row.

Repeat this row to 3 stitches on needle. Cast off.

Sew in ends. Enjoy!