To make a Granny Square hat is really quite simple. You start by selecting your hook. I used an H hook but you can use whichever you want. You start out by chaining 10. Then use a slip stitch in the first chain to turn the chain into a circle. After you’ve made your circle, chain three. Then make two double crochets by going through the inside of the hole. Then, you chain 3 more. Double crochet three times through the hole and then chain three. Again, double crochet three times and chain three. Use a slip stitch into the top your first chain of three to finish the round. (A round is each pass all the way around the granny square). To start the next round, chain three. Double crochet twice. Chain one. Double crochet three times. Chain three. Double crochet three times and continue the pattern. On the corners you will chain three. You can keep it going as long as you wish. The more rows you make the larger your hat will be. The square should start to curve into a hat shape. You can use a solid color, or mix it up.
Here is a link to an illustrated description of how to make a granny square:
Step 1: Changing Yarn Color
To change colors, use a slip stitch to finish your current round. Clip your yarn so that you have about two inches and make a slip stitch that will become a knot when you pull all of the way through. Weave what is left of the tail through the granny square using your hook to hide the unfinished end.
Start your loop on your crochet hook with your new color. Pull through one of the holes as shown and begin your round all over again. Double crochet three. Chain one. Double crochet three. Chain three (for the corner). and so on and so forth.
Step 2: The Finished Product.
The finished product should look something like this. This is a delightful project with adorable results!! Hope you enjoyed and happy crocheting!!