Try Crazy Aunt Purl's beanie recipe-
http://www.crazyauntpurl.com/archives/2011/06/easy_slouchy_ha.phpYou will have to substitute the *k1 p1 brim in the pattern for *k 2 p2 and chart up that diamond pattern in the photo (see below, the x are the dark stitches) but otherwise it will look the same.
You'll have to knit about 1.5 inches of the *k2 p2 brim, then knit two more rows of the light wool and then knit this chart:
o o o o o o o o o o
o o o o x o o o o o
o o o o x o o o o o
o o o x x x o o o o
o o o x o x o o o o
o o x x o x x o o o
o o x o o o x o o o
o x x o o o x x o o
o x o o o o o x o o
x x o o o o o x x o
x o o o o o o o x o
x o o o o o o o x o
x x o o o o o x x o
o x o o o o o x o o
o x x o o o x x o o
o o x o o o x o o o
o o x x o x x o o o
o o o x o x o o o o
o o o x x x o o o o
o o o o x o o o o o
o o o o x o o o o o
o o o o o o o o o o
Knit chart right to left, top to bottom, once. Each line of the chart is knit for one round.
(This chart looks really stretched out, but it will look just like the photo when it's knit up. If you copy and paste it into a table that is 22 rows by 11 columns, it will make sense. I had a really good look at the picture and I'm very sure this is the correct pattern.).
The chart I've made is 10 stitches wide, so the number of stitches you knit in each round of the body of the hat will have to be a multiple of 10. Placing a stitch marker in between each repeat of the chart will make things easier.
Once you've knit the chart, it looks like you'll need to knit another few inches of the light colour and then decrease, according to the directions in Crazy Aunt Purl's pattern.
Crazy Aunt Purl's pattern will produce a hat that looks gathered at the top, due to the method of decreasing stitches that she uses. Then it's just a simple matter of making a pom pom for the top.
In my experience the wider the hat is to begin with, the more gathered it will look at the top. I would suggest that you do not alter this pattern beyond the brim and the chart (above), just knit it to the length you want (remembering that the decreased section will add another couple of inches).
I've used this pattern about 15 times, it's very simple, can be used with almost any yarn (although the yarn in your photo looks like it would be about 10-12 ply) and the hat suits just about everyone
