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Apple Cinnamon Overnight Oats

Category Rating / Details
Prep Time 5 minutes
Chill Time 4 hours (minimum) – overnight recommended (8–12 hours)
Total Time 4 hours 5 minutes to 12 hours 5 minutes
Effort Intensity ⭐☆☆☆☆ (Very Low – just stirring)
Cost Intensity (Budget−friendly–under2 per serving)
Mess Intensity 🧽🧽☆☆☆ (Low – one jar or bowl)
Cooking Required None (no heat, no stove, no oven)
Dietary Fit Vegetarian (easily vegan & gluten-free)

Intensity Key:

  • Effort: 1 star = minimal physical work

  • Cost: $ = cheap ingredients

  • Mess: 2 sponges = easy cleanup (1 jar + 1 spoon)


Why This Recipe Works

Overnight oats are science, not magic. The rolled oats absorb liquid slowly over time, softening without turning mushy. The chia seeds (optional but recommended) add thickness and a boost of omega-3s, while Greek yogurt contributes creaminess and protein. Fresh apple provides natural sweetness, texture, and that pie-like bite.

Unlike cooked oatmeal, this version preserves more nutrients and keeps you cool in summer. Plus, it’s endlessly customizable.


Ingredients (Makes 1 serving)

Scale up as needed for meal prep – recipe multiplies perfectly.

  • ½ cup rolled oats (old-fashioned) – not instant; steel-cut won’t soften enough

  • ½ cup unsweetened almond milk (or any milk: dairy, oat, soy)

  • ¼ cup plain Greek yogurt (use dairy-free coconut or soy yogurt for vegan)

  • 1 tablespoon chia seeds (optional, but recommended for thickness)

  • 1 tablespoon maple syrup or honey (adjust to taste)

  • ½ teaspoon ground cinnamon

  • ⅛ teaspoon ground nutmeg (optional, but wonderful)

  • ½ medium apple (Honeycrisp, Fuji, or Gala), diced small (about ½ cup)

  • 1 tablespoon chopped walnuts or pecans (for topping)

Optional add-ins:

  • 1 tablespoon raisins or dried cranberries

  • 1 scoop vanilla protein powder (reduce maple syrup slightly)

  • ½ tablespoon almond butter for richness


Equipment Needed

  • 1 pint-sized mason jar (or any lidded container / bowl with cover)

  • Small spoon or fork for mixing

  • Cutting board and paring knife (to dice the apple)


Step-by-Step Recipe

Step 1: Prep the apple (1 minute)

Wash the apple. Dice it into small, bite-sized pieces (about ¼-inch cubes). You can leave the skin on for extra fiber and color. Set aside.

Intensity note: This is the only “cutting” step. Low knife skill required.

Step 2: Combine dry ingredients (30 seconds)

In your mason jar or container, add:

  • ½ cup rolled oats

  • 1 tablespoon chia seeds (if using)

  • ½ teaspoon cinnamon

  • ⅛ teaspoon nutmeg

Give it a quick stir to distribute the spices.

Step 3: Add wet ingredients and sweetener (1 minute)

Pour in:

  • ½ cup almond milk

  • ¼ cup Greek yogurt

  • 1 tablespoon maple syrup or honey

Stir thoroughly until no dry pockets remain. The mixture will look wet and slightly loose – that’s perfect.

Step 4: Fold in the apple (30 seconds)

Add the diced apple. Stir gently to incorporate. Some apple pieces will float, and that’s fine.

Step 5: Seal and shake (optional, 10 seconds)

Place the lid on tightly. Shake the jar 5–6 times to ensure everything combines. If using a bowl, just stir again.

Step 6: Refrigerate overnight (minimum 4 hours)

Place the jar in the refrigerator. For best texture and flavor, chill for 8–12 hours. The oats need time to soften and absorb the liquid.

Pro tip: Make 4–5 jars on Sunday night for the entire workweek. They stay fresh in the fridge for up to 5 days.

Step 7: Serve (1 minute in the morning)

In the morning, remove the jar from the fridge. The oats will have thickened into a pudding-like consistency. Stir once. If they seem too thick, add a splash of milk. Top with chopped walnuts or pecans and an extra sprinkle of cinnamon if desired.

You can eat it cold straight from the jar, or microwave for 45 seconds if you prefer warm oats.


Nutritional Information (per serving, as written)

Approximate – using unsweetened almond milk, Greek yogurt, maple syrup, chia seeds, and half an apple with walnuts.

Nutrient Amount % Daily Value (approx)
Calories 410 kcal
Protein 16 g 32%
Carbohydrates 58 g 21%
– Dietary Fiber 12 g 43%
– Sugars 22 g (naturally occurring from apple + maple)
Fat 14 g 18%
– Saturated Fat 2 g 10%
Cholesterol 5 mg 2%
Sodium 150 mg 7%
Calcium 280 mg 22%
Iron 2.5 mg 14%
Potassium 420 mg 9%

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