Yarn: standard sock yarn, about 75 grams.
Needles: 2.25mm (US 1) double pointed set of 4
Markers: one for start of row, and two different ones for thumb increases.
Stitch holders (you could use a darning needle and pass contrasting yarn through the stitches to hold them)
Gauge: 28 sts = 4 inches in 3 X 1 ribbing pattern.
3 X 1 ribbing pattern: [Knit 3, Purl1] repeat
Size: to fit ladies or teens hands. Watch length of open finger and thumb and adjust for shorter fingers... you want to leave exposed from the final knuckle.
Right Hand: Cast on 52. Divide onto 3 needles and join carefully, begin cuff pattern: [Knit2, Purl2]repeat. Place a marker to show start of row. Working in 2 x 2 ribbing, continue until 4 inches are done, moving start of row marker with each new row.
Change to 3 x 1 ribbing pattern, and work that for 1 inch.
At start of new row: work 2 stitches, place 2nd marker, knit in the front and back and front again in the next stitch, place 3rd marker, and continue in 3 x 1 ribbing as established for the rest of the row.
*for next 2 rows, knit the knits and purl the purls, making the stitches between the 2nd and 3rd markers (the thumb markers) all knit stitches.
Increase thumb row: knit 2, move marker, knit in front and back of next stitch, knit to last stitch before end of thumb marker and knit in front and back of that stitch, move marker, and work the rest of row as established.**
Repeat between * and ** until there are 13 stitches between the thumb markers.
Work 2 more rows as established.
Nest row: Knit 2, place next 13 stitches onto a holder, and remove the thumb markers, then cast one stitch on needle, and continue to work the 3 x 1 ribbing from the other side of the thumb, pulling the gap closed and letting the thumb stitches hold in front of your mitten.
Work the 3 x 1 ribbing for the rest of the hand for about 1.5 inches or until the palm of hand in completely covered (you can try it on as you go to check!).
You should still have a start of row marker that is moving up with you, so starting there make the index finger as follows: place next 7 stitches on a needle, place next 38 on a holder, and place last 7 stitches on a needle. (you have not knit any stitches while doing this)
At start of row: knit 7 from first needle, cast on two more and split these 9 more evenly onto two needles, then join the circle by knitting a third needle from the last 7 stitches. You have a small closed circle of 16 stitches. Work around this in all knit stitches for 1.75 inches or desired length for the index finger, then cast all off loosely. Leave a 5 inch end to weave in later.
Put the 38 stitches from a holder onto needles like this.... first 20 on the first needle, next 10 on second, then 8 on third needle. As you knit around these from the start, end with casting on 2 more stitches on the last needle, then join in a circle and knit the rest of the mitten top.
Work even for one inch. Decrease row: Knit 2 together at start AND end of needle 1, and knit 2 together at start only of needle 2 and end only of needle 3 (Decreases are on the outside edges of the mitten only - like a sock toe).... Now here is the tricky part. You will continue to decrease stitches at the end of needle 1 and start of needle 2 every other row (more tapered on the pinky finger side) BUT will only decrease every SIXTH row on the middle finger side.... you can do it, it's only for a couple of inches! When the whole mitten top is about 3 inches long and you have about 16 stitches left you can stop and use a weaving (kitchener stitch) to close the top like a sock...
Thumb: Place 13 stitches from holder onto 2 needles, attach yarn and knit across them both, then with a third needles, pick up 5 stitches evenly from the top side of the thumb hole. Join and work evenly for 1.5 inches for thumb, then bind of loosely all stitches.
Left Mitten: Cast on 52 and work the same as right, placing start of row marker, work until 1 inch of 3 x 1 ribbing is done.
Placement of thumb markers: Work around the mitten until 3 stitches remain BEFORE start of row marker: place thumb marker, knit in front and back and front again of next stitch, place second thumb marker.
Continue to work in the same manner as right mitten until 13 sts on the thumb, and place on holder as before. Cast one more on the needle over the thumb and continue to work the same way as the right mitten right through to the finish. Pick up and work the thumb the same.