The trick to delicious homemade yogurt is starting out with good ingredients. You only need two things – milk and a yogurt starter. I use organic whole milk to ensure I am making a high quality product. Whole milk makes the yogurt thicker and so much more decadent, but you can also use low-fat milk. You should choose a yogurt that tastes good to you, as it will determine how your final product will taste. Make sure your yogurt has live active cultures and is unsweetened.