Place the oats and almond milk in a large bowl. Stir in the vanilla extract. Soak the oats for at least ten minutes to allow them to begin absorbing the liquid.
Spoon the soaked oats into individual mason jars or an equivalent container. For best flavor and texture, soak the oats in the refrigerator overnight before adding toppings.
Before serving, add the desired toppings to each jar based on the flavor combinations listed above and shake well to combine.
Enjoy your overnight oats chilled or at room temperature. For a warm treat, remove the lid and microwave on high for 1-2 minutes. Be sure to stir well after heating to distribute the warmth evenly.