Direct from the Vegan baking Bible " The Joy of Vegan Baking" by Colleen Patrick-Goudreau:

"If a recipe calls for cow's milk, try using an equal amount of unsweetened soymilk, almond milk or coconut milk. Pick a nondairy milk that will complement the taste of the dish, like coconut milk in tropical treats or almond milk in nuttier baked goods."