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A glass jar of peanut butter banana overnight oats topped with fresh banana slices, chocolate, and a sprinkle of cinnamon.

Easy Banana Cinnamon Overnight Oats

A wholesome and delicious breakfast that practically makes itself while you sleep! This easy recipe combines ripe bananas, warm cinnamon, and hearty oats for a grab-and-go meal.
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Prep Time 5 minutes
Total Time 5 minutes
Servings: 1 serving
Course: Breakfast
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

  • 1/2 cup rolled oats (old-fashioned)
  • 1/2 cup milk any kind (dairy, almond, soy)
  • 1/2 medium ripe banana mashed
  • 1/2 tsp ground cinnamon
  • 1 tbsp chia seeds optional, for thickness
  • 1 tbsp maple syrup or honey, adjust to taste
  • 1/4 tsp vanilla extract optional
Toppings (Optional)
  • 1/4 banana sliced
  • 1 tbsp chopped nuts (walnuts, pecans)
  • 1/4 tsp extra cinnamon

Equipment

  • Mason Jar (16 oz or larger)
  • Fork
  • Spoon

Method
 

Prepare the Oats
  1. In a 16 oz mason jar or an airtight container, mash the ripe banana with a fork until mostly smooth, leaving a few small lumps for texture if desired.
  2. Add the rolled oats, milk, ground cinnamon, chia seeds (if using), maple syrup, and vanilla extract (if using) to the jar with the mashed banana.
  3. Stir all ingredients together very well, ensuring the oats are fully submerged in the liquid and everything is evenly combined. Scrape down the sides of the jar to make sure no dry oats are sticking.
Refrigerate and Serve
  1. Cover the jar tightly with a lid and place it in the refrigerator for at least 4 hours, or preferably overnight (8+ hours), allowing the oats to soften and thicken.
  2. The next morning, give the oats a quick stir. If desired, add a splash more milk to reach your preferred consistency. Top with fresh banana slices, chopped nuts, and a sprinkle of extra cinnamon before serving.

Notes

**Storage**: Store leftover overnight oats in an airtight container in the refrigerator for up to 3-4 days. The banana might brown slightly over time, but the oats will still be delicious.
**Variations**: Feel free to add a spoonful of nut butter for extra protein and creaminess, or a sprinkle of shredded coconut for a tropical twist.
**Consistency**: If you prefer a thinner consistency, add a little more milk in the morning. For a thicker consistency, add an extra 1/2 tablespoon of chia seeds before refrigerating.