With each bite of my High-Protein Cinnamon Toast Crunch Overnight Oats, I’m whirled back to carefree mornings of childhood, when breakfast was a crunchy cereal dream. It’s amazing how something so simple can transport you through time while packing a nutritious punch. This recipe, combining creamy oats and layers of your favorite cinnamon-spiced cereal, takes only 15 minutes to prep—perfect for those busy mornings when you crave a satisfying, healthy breakfast without the hassle. Whether you’re fueling up for a busy day or just want a bit of nostalgia on your plate, these overnight oats fit the bill. Curious about how to make this delicious twist on a classic breakfast? Let’s dive in!

Why are overnight oats so popular?
Quick Prep Time: With just 15 minutes of your time, you can have a hearty breakfast ready for the week. Perfect for busy mornings, just grab your jar and go!
Nostalgic Flavor: Experience a delicious trip down memory lane with every spoonful of these Cinnamon Toast Crunch Overnight Oats. The sweet cinnamon flavor combined with creamy oats and crunchy cereal creates a breakfast that’s both comforting and satisfying.
High-Protein Boost: Thanks to the addition of Greek yogurt and protein powder, these oats pack a punch of protein, helping you stay energized throughout your busy day.
Endless Customization: This recipe is easily adaptable! Try adding fresh fruits, nuts, or even swapping in flavors like chocolate for a decadent twist. If you’re looking for more inspiration, check out my Cinnamon Roll Overnight Oats for another delicious start to your day!
Crowd-Pleasing Delight: These oats aren’t just for you; they’re a hit with family and friends too! Serve them on lazy Sunday mornings or during brunch gatherings, and watch everyone indulge in the nostalgia.
Cinnamon Toast Crunch Overnight Oats Ingredients
For the Oats
- Old Fashioned Oats – These provide structure and fiber for a hearty base; quick oats can be used as a substitute, but they might change the texture.
- Unflavored Protein Powder (Quest) – A great way to elevate the protein content; consider swapping with plant-based or whey protein as preferred.
- Protein Plant Milk (Good Karma) – Acts as the creamy liquid to absorb the oats; feel free to use any non-dairy or regular milk that you enjoy.
- Nonfat Plain Greek Yogurt (Siggi’s) – Adds both creaminess and protein; switch to dairy-free yogurt for a vegan-friendly option.
For Sweetness and Flavor
- Sugar Free Syrup (Mrs. Buttersworth) – Sweetens the dish without added refined sugars; maple syrup or honey are lovely alternatives if you’re looking for an extra touch of sweetness.
- Vanilla Extract – Boosts the overall flavor profile; pure vanilla is preferred, but imitation can work in a pinch.
- Cinnamon – Infuses warmth and spice into your oats; for a twist, a hint of nutmeg can add an interesting flavor dimension.
For Texture and Crunch
- Cinnamon Squares Cereal (Whole Foods) – This topping adds a perfect crunch reminiscent of your favorite childhood cereal; any similar cinnamon-flavored cereal can make a great substitute.
Step‑by‑Step Instructions for Cinnamon Toast Crunch Overnight Oats
Step 1: Combine Oats and Ingredients
In a large mixing bowl or mason jar, combine the old-fashioned oats, unflavored protein powder, protein plant milk, nonfat plain Greek yogurt, sugar-free syrup, vanilla extract, and a dash of cinnamon. Stir well until all ingredients are fully incorporated and creamy. This mixture should be thick but smooth, ensuring the oats are evenly coated.
Step 2: Refrigerate Overnight
Cover your bowl or jar tightly with a lid or plastic wrap and place it in the refrigerator. Allow the mixture to set for at least 8 hours or overnight. This refrigeration time is crucial as it enables the oats to absorb the liquid and flavors, resulting in a deliciously creamy consistency that’s perfect for your Cinnamon Toast Crunch Overnight Oats.
Step 3: Layer the Cereal
The next morning, take the oats out of the fridge and give them a good stir to mix the ingredients again. In a serving bowl or another mason jar, layer the creamy oats with a generous handful of crushed Cinnamon Squares cereal. The crunch of the cereal will provide a delightful contrast to the smooth oats, making your breakfast both nostalgic and satisfying.
Step 4: Serve Immediately
Enjoy your layers of creamy oats and crunchy cereal right away for the best texture. If you’re preparing a second serving, repeat the layering process to maintain the cereal’s crunchiness. With every spoonful of these Cinnamon Toast Crunch Overnight Oats, you’ll be transported back to your favorite breakfast moments filled with warmth and comfort.

What to Serve with Cinnamon Toast Crunch Overnight Oats
Savor a breakfast experience that delights the senses and fills the heart with warm nostalgia.
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Fresh Berries: Tossing in a handful of strawberries or blueberries adds a refreshing contrast to the creamy oats while providing vibrant color and natural sweetness.
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Creamy Greek Yogurt: A dollop of additional Greek yogurt on top enhances the creaminess and adds even more protein to fuel your day.
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Honey Drizzle: A light drizzle of honey brings an extra touch of sweetness that complements the cinnamon perfectly, making each bite a treat.
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Banana Slices: Soft, ripe banana slices add a natural sweetness and creamy texture, balancing the crunch of the cereal with a satisfying bite.
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Nut Butter Swirl: Adding a spoonful of almond or peanut butter gives a rich and nutty flavor, enhancing the warmth and nostalgia of your overnight oats.
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Refreshing Smoothie: Pair your oats with a light smoothie—try a banana and spinach mix for a nutritious boost that complements the cinnamon flavor beautifully.
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Chai Tea: Sip on a warm cup of chai tea to echo the spices in your oats, creating a seamless blend of flavors that warms your soul.
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Cinnamon Applesauce: Serve a side of warm cinnamon applesauce for a comforting, sweet addition that perfectly matches the profile of your oats.
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Maple Syrup: For those who love the sweet notes, a splash of pure maple syrup over the top enhances the flavors while staying true to the breakfast’s roots.
Whether you keep it simple or elevate your breakfast spread, these delicious additions will enhance your enjoyment of Cinnamon Toast Crunch Overnight Oats.
Cinnamon Toast Crunch Overnight Oats Variations
Feel free to let your creativity shine as you customize these delightful overnight oats to suit your tastes!
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Flavored Protein Powder: Swap in chocolate or vanilla protein powder for a fun spin on flavor that adds a unique twist.
Expand your horizons by combining the Classic Cinnamon Twist with a rich chocolate flavor if you’re in the mood for a dessert-like breakfast! -
Nutty Addition: Stir in a tablespoon of almond or peanut butter for a creamy texture and extra protein.
The nutty richness pairs beautifully with cinnamon, giving the oats an extra layer of flavor that’s oh-so-satisfying. -
Fruit Fiesta: Top your oats with fresh fruits like bananas, berries, or apples for a burst of color and nutrition.
These fruits not only enhance the flavor but also add vibrant colors and textures, perfect for your morning boost! -
Cocoa Kick: Mix in a tablespoon of cocoa powder for a chocolatey twist that will satisfy your sweet tooth.
Let’s face it, who doesn’t love chocolate in the morning? Pair this with a drizzle of honey for divine indulgence. -
Coconut Craze: Add unsweetened shredded coconut for crunch and a tropical flair to your breakfast.
This twist evokes a beachy vibe, making your meal feel like a mini-vacation. -
Spicy Surprise: Incorporate a pinch of cayenne or chili powder for an unexpected kick that lifts your oats to a new level.
A little heat goes a long way, showcasing the versatility of oatmeal while adding a delightful contrast to the sweetness. -
Zesty Zing: Mix in a teaspoon of lemon or orange zest for a refreshing citrus twist that brightens your oats.
This uplifting flavor combo not only complements the cinnamon but also refreshes your palette with every bite. -
Alternative Sweeteners: For a change in sweetness, try maple syrup or agave nectar instead of sugar-free syrup.
These natural sweeteners bring another layer of depth, making every spoonful feel like a treat—something straight from Saturday mornings at home!
By exploring these variations, your Cinnamon Toast Crunch Overnight Oats will transform into a versatile dish that never feels boring. If you’re eager for more breakfast ideas, don’t miss my delicious Cinnamon Roll Banana Bread for an unforgettable experience!
Make Ahead Options
These Cinnamon Toast Crunch Overnight Oats are a meal prep dream come true! You can prepare the creamy oat base up to 3 days in advance, allowing the flavors to meld beautifully while saving you precious morning minutes. Simply combine the old-fashioned oats, protein powder, protein milk, Greek yogurt, sugar-free syrup, vanilla extract, and cinnamon in a jar or container, and refrigerate. For maximum crunch, add the Cinnamon Squares cereal layer just before serving to keep it fresh and crispy. By prepping ahead, you can enjoy a nostalgic and nutritious breakfast every day of the week without the hassle!
How to Store and Freeze Cinnamon Toast Crunch Overnight Oats
Fridge: Store leftover Cinnamon Toast Crunch Overnight Oats in an airtight container for up to 5 days. This will keep them fresh and ready for a quick breakfast option.
Freezer: If you want to prepare oats in advance, freeze them in individual portions for up to 2 months. Just be sure to use freezer-safe containers to maintain quality.
Thawing: To enjoy frozen oats, thaw them overnight in the fridge. Give them a good stir before serving to mix the flavors and ensure a creamy consistency.
Cereal Topping: For the best crunch, store the Cinnamon Squares cereal separately and add it just before serving. This avoids sogginess and keeps breakfast delightful!
Expert Tips for Cinnamon Toast Crunch Overnight Oats
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Perfect Texture: Ensure the oats sit for at least 8 hours in the fridge. This long soaking time is essential for achieving that creamy consistency you want in your Cinnamon Toast Crunch Overnight Oats.
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Transport-Friendly: Use glass jars for easy transport. They’re great for meal prep and ensure your oats stay fresh and tasty when you’re on the go.
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Cereal Crunch: For added crunch, layer the Cinnamon Squares cereal just before serving. This keeps it crisp and prevents any sogginess from the creamy oats.
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Mix and Match: Don’t hesitate to customize! Swap in different flavored protein powders or add fresh fruits and nuts to change up the flavor profile according to your taste.
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Storage Solutions: Store any leftover oats in the fridge for up to 5 days. This helps simplify your meal prep and ensures you have a healthy breakfast option ready to go!

Cinnamon Toast Crunch Overnight Oats Recipe FAQs
What type of oats should I use for this recipe?
For the best results, I recommend using old-fashioned oats as they provide a hearty texture and optimal absorption of liquids. Quick oats can be used in a pinch, but they may yield a creamier and slightly less structured outcome.
How should I store leftover Cinnamon Toast Crunch Overnight Oats?
Leftover oats can be stored in an airtight container in the fridge for up to 5 days. This makes them a convenient option for meal prep so you can have a nutritious breakfast ready to go!
Can I freeze my Overnight Oats?
Absolutely! You can freeze these oats in individual portions for up to 2 months. Just make sure to use freezer-safe containers. When you’re ready to enjoy them, thaw the oats overnight in the fridge and give them a good stir before serving.
What if my oats are too thick after soaking overnight?
If your oats end up too thick, no worries at all! Simply add a splash of protein plant milk or your preferred milk to loosen the mixture, stirring until you reach your desired consistency. That’s the beauty of overnight oats—you can always adjust to your liking!
Are there any dietary considerations I should be aware of?
Yes, when making Cinnamon Toast Crunch Overnight Oats, be mindful of any allergies. The recipe includes dairy (Greek yogurt and milk) and can be easily modified for dairy-free diets by substituting with non-dairy alternatives. Always check your protein powder for allergens as well, especially if serving to kids or guests with sensitivities.

Cinnamon Toast Crunch Overnight Oats for a Nostalgic Boost
Ingredients
Equipment
Method
- In a large mixing bowl or mason jar, combine the old-fashioned oats, unflavored protein powder, protein plant milk, nonfat plain Greek yogurt, sugar-free syrup, vanilla extract, and a dash of cinnamon. Stir well until all ingredients are fully incorporated and creamy.
- Cover your bowl or jar tightly and refrigerate for at least 8 hours or overnight to allow the oats to absorb the liquid.
- The next morning, stir the oats and layer them with a generous handful of crushed Cinnamon Squares cereal.
- Enjoy your Cinnamon Toast Crunch Overnight Oats immediately for the best texture.

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