Make your own creamy, tangy yogurt or kefir at home with just two ingredients and a bit of patience. This recipe yields a versatile base for smoothies, dressings, or eating plain.
5 min prep
4 servings
150 kcal/serving
Ingredients
4 cups whole milk (or 2% milk)
2 tablespoons plain yogurt with live active cultures (or 2 tablespoons kefir grains for kefir)
Instructions
Heat milk in a saucepan over medium heat until it reaches 180°F (82°C), stirring occasionally to prevent scorching. If using a thermometer, check temperature; otherwise, heat until small bubbles form around the edge and milk is steaming.
Remove from heat and let milk cool to 110-115°F (43-46°C). Stir occasionally to speed cooling. You can place the pot in a cold water bath to cool faster.
In a small bowl, whisk a cup of the warm milk with the yogurt (or kefir grains) until smooth. Pour this mixture back into the pot and stir gently to combine.
Pour the mixture into clean jars or a container. Cover with a lid or plastic wrap. Incubate in a warm place (e.g., oven with light on, yogurt maker, or wrapped in a towel) at 110°F (43°C) for 6-12 hours for yogurt, or 12-24 hours for kefir. The longer it sits, the tangier it becomes.
Check for doneness: yogurt should be set like custard; kefir should be slightly thickened and bubbly. Refrigerate for at least 4 hours to stop fermentation and thicken further. For kefir, strain out the grains before refrigerating if desired.
Tips
For thicker yogurt, strain through cheesecloth for a few hours to make Greek-style yogurt.
Store homemade yogurt or kefir in the refrigerator for up to 2 weeks. Reserve a few tablespoons to use as a starter for your next batch.
If using kefir grains, rinse them with cool water between batches and store in fresh milk in the fridge if not using immediately.