The pattern is subtly different, but check out this video.
https://youtu.be/0vVW1RkWGOs

Bon booties are knitted from the bottom up.
Begin with a sole forth and back in garter stitch
and work the foot in stockinette stitch.
There are 2 options for cuff stockinette stitch and rib stitch.

For good fit, I recommend the Aran weight yarn and 4mm needle.

SIZE
0-9months (8.5 -10cm)

YARN
Debbie bliss Cashmerino Aran 50g or
Knitting for olive’s heavy merino 50 or
Cascade 220

GAUGE
STOCKINETTE STITCH : 9 sts / 5cm / 4mm

NEEDLE
Circular needle size 4mm