Yes you can. It's easy and with the price of Greek yogurt at $2 for a small serving it will save you a ton of money! I first saw this recipe here, and with these directions we have been making our own for over a year now. Grocery store cost = $2 for 6 oz. Our cost= $2.50 for about a half gallon!
Greek yogurt is thick and creamy and so good for you! We make the yogurt overnight in the crock pot and strain it through extra large coffee filters to get rid of most of the watery whey so it gets stand up on your spoon thick. With a little practice you will get pretty consistent results, and you can't beat the price! A little honey, a little fresh fruit, and you have a great start to your day:>)
I've added this link to my recipes page. If you give it a try let me know what you think. If you need help, email me, I'll be glad to help you through it.