Quick answer: Judy's Magic Cast On creates stitches simultaneously on two needles or two ends of one circular needle, making a seamless closed toe for toe-up socks with no gaps or holes.
What it is
Developed by Judy Becker, this cast on distributes stitches evenly across two needle tips at once, creating a seamless closed cast-on for sock toes and other small circular beginnings. It's the gold standard for toe-up sock knitting — no seaming, no holes, and it works for any number of stitches.
When to use it
- Toe-up socks (the standard cast on for this construction)
- Any pattern that begins at a closed circular tip — fingers on mittens, thumbs
- Anywhere you need a seamless, hole-free circular beginning
How to do it
- Hold two needle tips parallel (or the two ends of a long circular needle) in your right hand with tips pointing right.
- Make a slip knot and place it on the top needle — your first stitch on the top needle.
- Hold the tail yarn over your thumb (bottom yarn) and working yarn over your index finger (top yarn).
- For a stitch on the bottom needle: bring the bottom needle up, swoop under the thumb yarn from bottom to top, catch the index finger yarn, and pull through.
- For a stitch on the top needle: bring the top needle down over the index finger yarn, swoop under it from below, catch the thumb yarn, and pull through.
- Alternate steps 4 and 5 until you have the required number of stitches on each needle.
- First round: knit the top needle stitches normally, then knit the bottom needle stitches through the back loop to untwist them.
Common mistakes
- Forgetting to knit the bottom needle stitches TBL (through back loop) on round 1 — creates twisted stitches
- Losing track of which needle is top/bottom — a contrasting color marker on one needle helps
- Pulling too tight — keep stitches loose enough to slide freely