For vegans, use plain unsweetened dairy-free yogurt or Greek yogurt. Use sweetened yogurt if making it with fruits. u003cbr/u003eu003cbr/u003eIf you are not vegan, use full-fat plain unsweetened yogurt. If using Greek yogurt, add some water to dilute it while whisking. u003cbr/u003eu003cbr/u003eFat-free or low-fat yogurt can also be used. Homemade yogurt tastes amazing too.