These Healthy Chocolate Brownie Overnight Weetbix are a yummy and nutritious treat! With chocolatey flavors and crunchy Weetbix, they make breakfast feel special.
I’m a fan of prepping these the night before—waking up to a sweet surprise is the best! Plus, they’re packed with goodness, so I don’t feel guilty enjoying them. 😋
Key Ingredients & Substitutions
Weetbix: These cereal biscuits provide a great base and add some crunch! If you’re unable to find Weetbix, crushed bran flakes or similar cereal can work as a substitute.
Cocoa Powder: Unsweetened cocoa powder is key for that rich chocolate flavor. In a pinch, you can use Dutch-processed cocoa, but it might alter the taste slightly.
Almond Meal: This adds a nice nutty flavor and texture. If you have nut allergies, use oat flour or whole wheat flour instead.
Maple Syrup or Honey: Both are natural sweeteners. Maple syrup gives a lovely flavor, while honey is sticky and sweet. If you’re vegan, stick with maple syrup!
Greek Yogurt: Greek yogurt keeps this moist and adds protein. If you’re dairy-free, a plant-based yogurt works just as well.
Dark Chocolate Chips: I love using dark chocolate for the health benefits and taste. If you prefer, use semi-sweet chips or even chopped up dark chocolate bar for a rustic look.
How Do I Make Sure My Brownies Turn Out Fudgy?
To achieve that perfectly fudgy texture, follow these tips. First, make sure not to overmix the batter after adding wet ingredients. That helps keep it tender. Also, allow it to refrigerate overnight—this step is essential for the best texture.
- Mix just until combined; overmixing could make them dry.
- Press the mixture down firmly when placing it in the tin to compact it, which helps create more chewiness.
- Letting it set overnight lets the flavors meld, making the brownie even tastier—not to mention easier to cut.
Lastly, don’t hesitate to drizzle some melted chocolate on top for an extra touch of sweetness and fanciness!

Healthy Chocolate Brownie Overnight Weetbix
Ingredients You’ll Need:
- 4 Weetbix biscuits, crushed
- 1/4 cup cocoa powder, unsweetened
- 1/4 cup almond meal (or ground almonds)
- 1/3 cup maple syrup or honey
- 1/2 cup Greek yogurt (or dairy-free yogurt)
- 1/4 cup milk (dairy or plant-based)
- 1 tsp vanilla extract
- 1/2 tsp baking powder
- Pinch of salt
- 1/4 cup dark chocolate chips or chunks (plus extra for topping)
- Optional: pinch of sea salt flakes for garnish
How Much Time Will You Need?
This recipe takes about 15 minutes to prepare, and you’ll need to refrigerate it overnight (or at least 6 hours) to let it set perfectly. In total, you’re looking at around 15 minutes of active time and a little patience for that delicious overnight chill!
Step-by-Step Instructions:
1. Mix the Dry Ingredients:
In a medium bowl, combine the crushed Weetbix, cocoa powder, almond meal, baking powder, and a pinch of salt. Stir everything together until it’s evenly mixed. This forms the base of your brownie mix!
2. Add the Wet Ingredients:
Now, add the Greek yogurt, maple syrup (or honey), milk, and vanilla extract to the dry mixture. Stir well until you achieve a thick, brownie batter-like consistency. It should feel dense and chocolatey!
3. Fold in the Chocolate Chips:
Gently fold in the dark chocolate chips, making sure they are evenly distributed throughout the batter. This will add yummy pockets of chocolate in every bite!
4. Prepare Your Baking Dish:
Line a small baking tin or mold with parchment paper for easy removal later. Pour the brownie mixture into the tin and press down gently to compact it. This helps your brownies hold together nicely.
5. Refrigerate!
Cover the tin with plastic wrap or a lid and place it in the refrigerator overnight (or at least for 6 hours). This allows the flavors to meld and the mixture to set into a perfect sliceable brownie!
6. Serve and Enjoy:
The next day, take the brownies out of the fridge. If you’d like, drizzle some melted dark chocolate over the top for an extra treat! Sprinkle a few sea salt flakes and some extra chocolate chips on top for added flavor and texture.
Cut into squares or any shape you’d like, and enjoy chilled or at room temperature. They make a fantastic make-ahead breakfast or guilt-free snack!
Enjoy this rich and fudgy, yet wholesome brownie treat! It’s a sweet way to start your day or to satisfy a chocolate craving anytime. 😊
Can I Use Different Types of Sweeteners?
Absolutely! You can substitute maple syrup with honey or agave syrup if you prefer. Just remember that different sweeteners may slightly alter the flavor, but they will still add that needed sweetness!
What Can I Use Instead of Greek Yogurt?
If you don’t have Greek yogurt, you can use any dairy-free yogurt, like coconut or almond yogurt. Alternatively, you could use unsweetened applesauce for a similar creamy texture and added moisture.
How Long Do These Brownies Last in the Fridge?
These brownies can be stored in an airtight container in the fridge for up to 5 days. They can also be frozen for up to 3 months—just make sure to wrap them well to avoid freezer burn!
Can I Add Other Ingredients?
Definitely! Feel free to mix in some nuts, dried fruits, or even a sprinkle of cinnamon for added flavor. Just ensure any additional ingredients still keep the overall texture balanced.



