These Peanut Butter Weetbix Cups are a comforting, crunchy snack—nutty, lightly sweet, and simple to make. With just five common ingredients they come together quickly and keep well in the fridge, making them ideal for busy days. They feel indulgent yet offer nourishing elements, a satisfying option when you want something sweet but still wholesome.
This is a playful, feel-good twist on a classic peanut butter cup. Instead of a processed base, crushed Weetbix provides a wholegrain, high-fiber foundation with a pleasant crunch. Mixed with creamy peanut butter, a splash of milk, and a touch of liquid sweetener, it forms a chewy, satisfying base that pairs perfectly with a smooth dark chocolate topping.
They manage to be indulgent without feeling heavy. Peanut butter contributes protein and healthy fats, Weetbix adds fiber and slow-release energy, and dark chocolate brings a hint of antioxidants—so these cups are a balanced snack you can enjoy with less guilt.
These cups are versatile: swap sweeteners, use any milk you prefer, or try almond or cashew butter instead of peanut. Make full-size cups for a more filling snack or press into mini molds for bite-sized treats.
They’re a meal-prep winner: about 15 minutes to make, then chill until set. Store in the fridge and you’ll have ready-to-eat snacks all week. Simple, reliable, and a little addictive in the best way.
Why You’ll Love This Recipe
- Only five ingredients – No long shopping lists or expensive specialty items. Just everyday pantry staples that combine into a treat that feels special yet remains simple and budget-friendly.
- No baking required – These set in the fridge, so no oven or preheating is needed. Perfect for warm days or when you want a fuss-free dessert.
- A treat that’s nourishing – Weetbix adds fiber, peanut butter supplies protein and healthy fats, and dark chocolate offers a touch of antioxidants. They taste like a treat while still giving some nutritional value.
- Customizable – Use honey, maple syrup, or agave for sweetness. Swap peanut butter for almond, cashew, or sunflower seed butter to change the flavor profile.
- Fridge-ready – Make a batch, chill, and you’ve got quick snacks for lunchboxes, after-dinner bites, or mid-afternoon pick-me-ups.
What Makes These Peanut Butter Weetbix Cups Healthy?
Weetbix: A wholegrain cereal that brings crunch, fiber, and steady energy—an excellent base compared with processed biscuit bases.
Peanut Butter: Provides plant-based protein and monounsaturated fats to help you feel full and satisfied, plus a rich, nutty flavor.
Liquid Sweetener: Honey, maple syrup, or agave add natural sweetness and help bind the mixture while contributing subtle flavor notes.
Milk: A splash of dairy or plant-based milk helps the mixture come together and keeps the texture moist and easy to press into molds.
Dark Chocolate: Adds a slightly bitter balance to the sweetness and forms a glossy, satisfying topping with a pleasant snap.
Ingredients Needed
Below are the main ingredients used in this recipe. Exact measurements are provided in the recipe card further down.
Weetbix – Crushed to form the base, adding fiber and a satisfying texture.
Peanut Butter – Creamy and binding, contributing flavor, protein, and healthy fats.
Liquid Sweetener – Honey, maple syrup, or agave for natural sweetness and stickiness.
Milk – A few tablespoons to bring the mixture together; use dairy or plant-based alternatives.
Dark Chocolate – Melted for the topping, giving a rich, glossy finish and a pleasant snap.
Ingredient Substitutions
Weetbix – Substitute with crushed digestive biscuits or oats. Oats add chewiness; biscuits give extra crunch.
Peanut Butter – Try almond, cashew, or sunflower seed butter. Sunflower butter is a good nut-free alternative.
Liquid Sweetener – Date syrup or rice malt syrup can be used for different flavor nuances.
Milk – Coconut, almond, oat, or soy milk work well for a dairy-free version.
Dark Chocolate – Use milk or white chocolate for a sweeter finish if preferred.
Note: Substitutions may change texture or flavor; adjust quantities slightly as needed to achieve the right consistency.
Equipment Needed
- Mixing Bowl – To combine crushed Weetbix with peanut butter and sweetener.
- Spoon or Spatula – For mixing evenly.
- Silicone Muffin Tray – Makes cups that release easily once chilled.
- Measuring Cup or Shot Glass – Useful for pressing the base down firmly.
- Heat-Proof Bowl – For melting the chocolate safely.
How to Make These Peanut Butter Weetbix Cups
Summary of the method with tips—see the recipe card below for exact quantities. A video is also embedded in the recipe card if you prefer a visual guide.
Step One:
Crush the Weetbix into fine crumbs in a bowl using your hands, a food processor, or a sealed bag and rolling pin.
Step Two:
Stir in the peanut butter, liquid sweetener, and a splash of milk. Mix until the crumbs are evenly coated and the mixture holds together when pressed.
Step Three:
If the mixture seems dry, add milk ½ teaspoon at a time. If too loose, add more crushed Weetbix until compact and pliable.
Step Four:
Divide the mixture between six silicone muffin tray holes. Press firmly with your fingers or the back of a small measuring cup to form a compact base with a slight edge for the chocolate.
Step Five:
Chop the dark chocolate and melt it in short bursts in the microwave, stirring between intervals, or melt over a double boiler. For a softer, creamier topping, stir in a spoonful of peanut butter once melted.
Step Six:
Spoon or pour the melted chocolate over each base and tap the tray gently to level. Finish with flaky sea salt or crushed peanuts if you like.
Step Seven:
Refrigerate the tray for at least 30 minutes until the chocolate sets. If short on time, freeze for 10–15 minutes and then allow the cups to soften a little before serving.
Tips & Notes
- Press firmly: A compact base prevents crumbling and keeps each cup tidy and chewy.
- Soften peanut butter: Warm a stiff jar briefly in the microwave to make mixing easier.
- Add toppings: Sea salt, chopped nuts, or cacao nibs add flavor and texture.
- Make mini bites: Use a mini muffin tray for snack-sized portions.
- Keep cold: Store in the fridge so the chocolate remains glossy and the base holds together.
How to Store Your Peanut Butter Weetbix Cups
Fridge – Store in an airtight container for up to one week for grab-and-go snacks.
Freezer – Freeze for up to two months. Allow to sit at room temperature for 5–10 minutes to soften slightly before eating.
Frequently Asked Questions
Can I make these vegan?
Yes—use maple syrup or agave as the sweetener and choose dairy-free dark chocolate.
Can I use crunchy peanut butter?
Yes—crunchy peanut butter adds extra texture and a pleasant bite to the base.
Do I have to use Weetbix?
No—you can substitute oats or crushed biscuits. The texture will vary slightly but the cups will still hold together.
Can I double the recipe?
Absolutely—this recipe scales well. Use a larger tray or make multiple batches.
How do I make the chocolate layer softer?
Stir 1–2 tablespoons of peanut butter into the melted chocolate for a softer, fudge-like topping.
Are these good for meal prep?
Yes—store in the fridge or freezer for easy grab-and-go snacks throughout the week.
More easy and healthy no-bake sweet treats
- Black Bean Brownies
- High Protein Chocolate Mousse
- Cottage Cheese Cookie Dough
- Chocolate Raspberry Tart
If you make this recipe, please leave feedback and a rating in the comments below—I’d love to hear how they turn out and see your photos!
Peanut Butter Weetbix Cups
Pin Recipe
Equipment
-
Mixing Bowl
-
Spoon or spatula
-
Silicone muffin tray
-
Measuring Cup or Shot Glass
-
Heat Proof Bowl
Ingredients
- 6 Weetbix
- 80 g Peanut Butter (⅓ cup)
- 80 g Liquid Sweetener – honey, maple syrup, or agave (¼ cup)
- 3 tbsp Milk
- 100 g Dark Chocolate (3oz)
Instructions
-
Crush Weetbix into fine crumbs in a bowl.
-
Stir in peanut butter, sweetener, and milk until combined and sticky.
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Divide into six silicone muffin tray holes and press down firmly.
-
Melt dark chocolate in the microwave or over a double boiler. Stir in a little peanut butter if you want a softer topping.
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Spoon chocolate over the bases and level out. Add toppings if desired.
-
Refrigerate for at least 30 minutes until the chocolate is set.
Video
Notes
- Press the base firmly so your cups hold together nicely.
- Warm peanut butter slightly if stiff for easier mixing.
- Add toppings like sea salt, chopped nuts, or cacao nibs for extra flavor and crunch.
- Make mini versions in smaller muffin trays for quick bites.
- Keep chilled in the fridge for the best texture; they also freeze well for up to 2 months.
MEASUREMENTS:
Using a kitchen scale and weighed measurements will give the most consistent results.
MORE INFO:
Read the recipe notes and tips above before starting for substitutions and storage advice.
NUTRITIONAL INFO:
Nutrition values are approximate and depend on the ingredients and portions you use.
Nutrition
Let me know in the comments below if you make these Peanut Butter Weetbix Cups!