Yarn: Schachenmaye Catania, colour Apfel 0205. Buy the yarn here.
Crochet hook: US E (3.5mm)
Rnd 3: 1dc betwen 2 and 2tr, * 2dc, ch5 * around. End with 1sl st with the 1st dc. Cut the yarn and pull the thread through the sl st. Change colour.