01 - In a medium bowl or mason jar, combine rolled oats, almond milk, chia seeds, maple syrup, and vanilla extract. Stir thoroughly until evenly mixed.
02 - Fold in the mixed berries, reserving a few fresh berries for topping if desired.
03 - In a small bowl, mix almond butter with a little almond milk to create a smooth, pourable consistency.
04 - Layer half the oat mixture into two jars or bowls, drizzle with almond butter mixture, then add the remaining oats on top.
05 - Cover and refrigerate overnight or for at least 4 hours to allow oats and chia seeds to soften and absorb the liquid completely.
06 - In the morning, stir thoroughly or leave layered. Top with reserved berries, sliced almonds, and an extra drizzle of almond butter or sweetener if desired. Serve chilled.