Almond milk is a liquid made from blended almonds. If you soaked the almonds overnight in water, these will be softened. Then you can blend those almonds easily. The blended almonds can be strained to prepare milk alternative. You can also add sweet or salt according to your preference. Some people like to add honey to make the milk tastier.
But you may be a concern whether this nut-based milk alternative is good for your health or not.