In a mason jar or container with a tight-fitting lid, combine the rolled oats, unsweetened almond milk, creamy peanut butter, and maple syrup. Stir thoroughly to combine, making sure the peanut butter is fully incorporated and there are no clumps—I like to use a fork to break up any peanut butter pockets so the mixture is uniform. This ensures even hydration and flavor distribution throughout the oats as they sit overnight.

Seal the jar tightly with a lid and place it in the refrigerator for at least 6 hours, though overnight (8-12 hours) is ideal. The oats will gradually absorb the liquid and soften, while the flavors meld together. The longer they sit, the creamier and more cohesive the texture becomes—I find that letting them chill overnight gives the best results compared to just 6 hours.

Remove the jar from the refrigerator and give it a good stir to redistribute any settled ingredients. If the mixture seems too thick, add a splash more almond milk to reach your preferred consistency. Transfer to a bowl or eat directly from the jar, then top with sliced bananas, chopped peanuts, and mini chocolate chips. The toppings add freshness, crunch, and extra protein to balance the creamy base.