I think you'd need to use a bulky/ chunky yarn for this. With a thinner yarn and more stitches you'd need to be more refined... bulky yarn is more forgiving. These guidelines definitely assume you know what you're doing and have a good eye for estimation.
Yarn used: Rowan Chunky Print (100g per 100m/ 110 yards) almost all of one ball, although any bulky yarn could be used
Needles: two sizes, one smaller for the band of ribbing and one larger for the rest of the hat. I like to knit hats on a smaller needle than "called for" on the ball band, this yarn called for a size US # 13, and I used a US #8 on the ribbing and a US #10 for the top of the hat.
Cast on the "right number" of stitches for a somewhat snug fitting band of 1x1 ribbing (even number of stitches) . In my case it was 72.
Knit in 1x1 ribbing for about 1.5 inches.
Increase substantially by working (k1 in knit stitch, knit in front and back of purl stitch) around.
Work even for about 3 inches or so.
divide work evenly in quarters (either onto 4 dpns or using stitch markers)
crown decreases: knit around, decreasing (by k2tog) one time in each quarter every row (total 4 decreases per round). I didn't want to show a "line" of decreases, so I made sure that they were in a different place every time. For example... on one round I decreased by k2tog on the third stitch after the marker, the next round I did it on the 10th stitch after each marker, changing the place on every round.
Continue that way until you have 4 sts left. on next round k2tog and knit to end, work a tiny bit of I cord on these three stitches, then draw the working yarn through the loops and weave in the end.
Voila! super simple, super fast beret!