This stitch is a variation of good old shells. To make it “lacy” I added chains between the shells.
Perhaps it wouldn’t be the best choice for a baby blanket (I think the holes are too big), but I can imagine a chunky scarf or cowl made with this stitch will look quite pretty.
Multiple of 7 plus 2 (I started with ch 30 to make the swatches shown)
Shell in this pattern: (2 dc, ch 1, 2 dc) all in same space.
Turning ch 3 is referred to as “last dc” at the end of rows.
Row 1: shell in 6th ch from hook, *ch 3, skip 6 ch, shell in next ch* across; dc in last ch. Ch 3, turn.
Row 2: *shell in next shell, ch 2, sc in next ch-3 space, ch 2* across, ending with shell in next shell; dc in last dc. Ch 3, turn.
Row 3: *shell in next shell, ch 3* across, ending with shell in next shell; dc in last dc. Ch 3, turn.
Repeat Rows 2-3.