Easy Homemade Evaporated Milk 🥛 🥛 🥛 Evaporated Milk 4 1/2 C. Milk (any kind) In a saucepan heat milk to a simmer and let cook for 45 minutes to evaporate about 50%. Let milk cool before storing in the fridge for 1 week or when the milk you used expires. yields: 2 cups of evaporated milk | Kitchentool