Scarf measures about 2 1/2" to 3" wide depending on how tightly you chain and this one measured about 65 inches.
Caron Simply Soft yarn, in black of course. It only takes about 1/3 of a skein, maybe 2oz.
Size I hook
Ch 13 (increase width by adding + 3 to the starting chain)
Row 1 (foundation): sc in 2nd ch from hook and across.
Row 2: ch 3 turn, *skip 2 chains, sc in next ch, ch 3, repeat from star across sc in last ch of foundation row.
Rows 3 to whatever length you want it: ch 3 turn, sc in 1st loop, ch 3, sc in 2nd loop, ch 3, sc in 3rd loop, ch 3 sc in 4th loop
Last Row: ch 1 turn, *2sc in loop, sc in sc, repeat from star across.