Immediately upon seeing McCall's 6796, I knew I wanted to lengthen it into a sweater dress.
Here are some informative posts on sewing sweater knits:
But then I saw this.
And I knew I wanted it in a sweater dress too, but maybe not so long.
So, I began Googling and came upon the Weekend Designer's Hooded Cowl.
I also know that you match the bottom of your hood to the size of the neck opening for the top to which it is being attached so I am thinking of using a cowl neck pattern even though this uses a simple scoop neck.
Then, I would add the hooded cowl onto it.
I will be back to update with the finished product. If I don't, leave a comment here on on my Facebook page.