Basic Overnight Oats (No-Cook Mason Jar) | CookOS

Basic Overnight Oats

Name: Basic Overnight Oats (No-Cook Mason Jar)
Prep time: 5 min
Total time: 8 h 5 min
Yield: 1 servings
Cuisine: American
Ingredients: 1/4 cup quick oats (I prefer organic, you can use gluten-free, or protein oats); 1/2 cup milk (use milk of choice); 1/2 medium banana (sliced (use the other half as a topping)); 1/2 tbsp chia seeds; 1/2 cup blueberries (divided); monk fruit sweetener (stevia, or your favorite sweetener, to taste); pinch cinnamon; 1 tbsp chopped pecans (or any nuts or seeds)

Overnight oats are a no-cook, make-ahead breakfast that combines rolled oats, milk, fruit, and seeds in a mason jar and chills overnight. The result is a creamy, fiber-rich bowl ready to eat straight from the fridge.

🌍American 🥗Gluten-Free 🏷️Overnight Oats

Total

8h 5m

Servings

Difficulty

Medium

Est. Cost

$17–$28

Recipe Source

View original recipe

From Skinnytaste

Ingredients

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1/4 cup quick oats (I prefer organic, you can use gluten-free, or protein oats)

1/2 cup milk (use milk of choice)

1/2 medium banana (sliced (use the other half as a topping))

1/2 tbsp chia seeds

1/2 cup blueberries (divided)

monk fruit sweetener (stevia, or your favorite sweetener, to taste)

pinch cinnamon

1 tbsp chopped pecans (or any nuts or seeds)

8 Ingredients

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Instructions

1
Place all the ingredient in a jar, shake, cover and refrigerate overnight.
2
The next morning, add your favorite crunchy toppings such as nuts, granola, etc and enjoy!

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Tips & Notes

Pro tips

Use a 1:2 ratio of oats to milk as a base; thicker consistency needs more oats or chia seeds, thinner needs more milk.
Slice banana and layer it directly in the jar with oats and milk so it softens and flavors the base overnight.
Divide blueberries: stir half into the base, reserve half for topping to maintain texture and color.
Let the jar sit at least 4 hours, preferably overnight, so oats fully hydrate and reach a creamy consistency.

Substitutions

Quick oats → rolled oats (will require extra soak time, up to 12 hours) or steel-cut oats (requires 24+ hours)
Banana → diced apple, pear, or peach (stir into base for overnight softening)
Blueberries → raspberries, strawberries, or blackberries (use fresh or frozen)
Pecans → almonds, walnuts, sunflower seeds, or pumpkin seeds (stir in or top)

Storage & make-ahead

Store in an airtight mason jar in the refrigerator for up to 5 days. Eat cold straight from the jar or transfer to a bowl and microwave 30–60 seconds to warm.