Video Tutorial

Round 1: 8 single crochet magic ring 
Round 2: 1 increase around
Round 3: *1 single crochet, 1 increase* Repeat around 
Round 4: *2 single crochet, 1 increase* Repeat around 
Rounds 5-10: 1 single crochet around 
Change color
Rounds 11-36: 1 single crochet around
Fold in the middle leaving the stitch marker in the center. Place the next color in the corner
7 single crochet, chain 1, turn
Repeat the same to the stitch marker
1 increase, single crochet to the last stitch, 1 increase. Slip stitch in the next sock stitch
Round 37: 1 single crochet around 
Rounds 38-47: 1 decrease, single crochet to the last 2 stitches of the heel, finish with single crochet
Rounds 48-59: 1 single crochet around
Rounds 60-62: *1 front post half double crochet, 1 back post half double crochet* Repeat around
Fasten off