Mixed Loop Stitch
Starting in the 3rd chain from the hook, work 1 HDC. 1 HDC in each chain across the row. CH 2 and turn. (Odd number of stitches made.)
Starting in the 1st stitch of the row, *work 1 front bottom loop HDC, then work 1 back loop HDC in the next stitch. Repeat from * to end of row. The last stitch of the row will be a front bottom loop HDC worked into the last stitch. (The turning chain does not count as a stitch.) CH 2 and turn.
REPEAT ROW 2
See video tutorial below.