Yarn: Schachenmayr Catania. Colour: Zartbitter 0415. Buy the yarn here.
Crochet hook: US E (3.5mm)
Rnd 11: * 1dc in top of each 7dtr, 1dc around after the last dtr, 1dc, ch1 between the next red dc (=9dc, 8 ch1) 1dc before the next group of dtr * around. End with 1sl st with the first dc. Cut the yarn and pull the thread through the sl st.
Weave inn ends.