Chocolate Chia Seed Pudding with Oat Milk and Vanilla Protein

Some mornings you want something that feels indulgent but actually does good things for your body. This chocolate chia seed pudding with oat milk is exactly that. It tastes like a thick, velvety chocolate dessert, but every spoonful is delivering fibre, omega-3 fatty acids, plant-based protein, and slow-release energy to carry you through the morning. It is the kind of breakfast that genuinely earns its place in your routine.
What makes this version stand out from the usual chia pudding recipes is the addition of vanilla protein powder. Most chocolate chia puddings rely heavily on maple syrup or honey for sweetness, which pushes the sugar content up fast. Here, the protein powder does double duty. It adds a gentle natural sweetness that means you only need a small amount of pure maple syrup, and it boosts the protein content significantly. Combined with the chia seeds and oat milk, each serving lands around 18 grams of protein, which is genuinely impressive for a plant-based breakfast. The raw cacao powder brings deep, bitter chocolate flavour that is far more complex than standard cocoa, along with a hit of antioxidants. If you only have regular unsweetened cocoa powder in the cupboard, that works brilliantly too.
Oat milk is the liquid base here, and it earns its spot. It is naturally creamy with a mild sweetness that complements chocolate flavour beautifully. It also froths and blends into chia seeds more smoothly than some thinner plant milks, giving the finished pudding that thick, spoonable consistency you are looking for. You want to use a barista-style or full-fat oat milk if possible, as the higher fat content gives you a richer, more satisfying result. The chia seeds themselves do all the thickening work overnight, swelling up and creating a tapioca-like texture that is endlessly satisfying. The ratio here is tested carefully so you get a pudding that is thick but not gluey, smooth but still has that pleasant chia seed texture running through it.
Prepping this the night before takes about seven minutes of actual hands-on time. You whisk everything together, give it a good stir after ten minutes to prevent clumping, then refrigerate overnight. By morning you have two generous portions ready to customise with whatever toppings you like. Sliced banana and a drizzle of almond butter is a favourite combination. Fresh raspberries cut through the richness beautifully. A small handful of granola adds crunch. You could even swirl in a spoonful of peanut butter before serving for extra protein and that irresistible chocolate-peanut flavour. This recipe is also excellent for meal prep. You can make four portions at once by simply doubling the quantities, and they sit happily in the fridge for up to four days, meaning you have breakfast sorted from Monday through Thursday without a second thought.
Ingredients
- 1.5 cups unsweetened oat milk (barista or full-fat variety recommended for creamiest result)
- 5 tbsp chia seeds (white or black both work fine)
- 3 tbsp raw cacao powder (or unsweetened cocoa powder)
- 2 scoops vanilla plant-based protein powder (approximately 50g total, pea or brown rice protein works well)
- 1 tbsp pure maple syrup (adjust to taste, or use a few drops of liquid stevia to keep sugar lower)
- 1 tsp pure vanilla extract
- 1 pinch fine sea salt (brings out the chocolate flavour)
- 0.3 tsp ground cinnamon (optional but adds warmth)
Instructions
- 1
Pour the oat milk into a medium mixing bowl or a large measuring jug. Add the cacao powder, vanilla protein powder, maple syrup, vanilla extract, sea salt, and cinnamon if using.
Sift the cacao powder and protein powder in if they are lumpy. This prevents dry clumps forming in the finished pudding.
- 2
Whisk vigorously for about 60 seconds until everything is fully combined and the liquid looks smooth and uniformly chocolatey with no powder streaks remaining.
A small handheld milk frother works brilliantly here and takes under 20 seconds.
- 3
Add the chia seeds and whisk again to distribute them evenly throughout the chocolate liquid.
- 4
Leave the mixture to sit at room temperature for 10 minutes, then whisk or stir firmly once more. This second stir is the key step. It breaks up any chia seeds that have started clumping together, ensuring a smooth, even pudding rather than a clumpy one.
Set a timer so you do not forget this step. It makes a real difference to the final texture.
- 5
Divide the mixture evenly between two jars or airtight containers. Seal with lids and refrigerate for a minimum of 6 hours or overnight.
Overnight is ideal. The longer the chia seeds sit, the thicker and creamier the pudding becomes.
- 6
In the morning, remove from the fridge and give each portion a good stir. If the pudding is thicker than you like, stir in a splash of extra oat milk to loosen it slightly.
- 7
Top with your chosen toppings such as fresh berries, sliced banana, a drizzle of almond butter, or a small handful of granola. Serve immediately and enjoy.
Nutrition per serving
295kcal
Calories
18g
Protein
28g
Carbs
9g
Fat
14g
Fibre
7g
Sugar
145mg
Sodium
Pro Tips
- ✓
The second stir after 10 minutes is non-negotiable for a clump-free pudding. Do not skip it.
- ✓
Barista oat milk produces a noticeably creamier pudding than standard varieties due to the higher fat content.
- ✓
Taste the liquid mixture before refrigerating. Adjust sweetness at this stage since it is much harder to fix once set.
- ✓
If your protein powder is already sweetened, reduce or omit the maple syrup entirely and taste first.
- ✓
For a mocha twist, dissolve half a teaspoon of instant coffee granules in the oat milk before mixing.
- ✓
Shake the jars gently the night before if you have sealed them with lids. This gives an extra mix without washing a spoon.
Frequently Asked Questions
Variations
- •
Peanut Butter Chocolate Swirl
Swirl one tablespoon of natural peanut butter into each jar just before serving. The combination with chocolate is a classic for good reason and adds an extra boost of healthy fats and protein.
- •
Raspberry Chocolate
Top with a generous handful of fresh or thawed frozen raspberries. The tartness cuts through the richness of the chocolate pudding beautifully and adds a burst of vitamin C and antioxidants.
- •
Mocha
Dissolve half a teaspoon of instant espresso powder into the oat milk before mixing everything together. The coffee deepens the chocolate flavour dramatically without tasting overtly like coffee.
- •
Mint Chocolate
Add a small drop of pure peppermint extract, starting with just one eighth of a teaspoon and adjusting carefully since it is very potent. Top with a few cacao nibs for crunch.
- •
Double Chocolate Crunch
Stir in one tablespoon of cacao nibs before refrigerating for pockets of bitter chocolate crunch throughout the pudding. Top with a small drizzle of melted dark chocolate for an extra treat.
Substitutions
- •Oat milk → Unsweetened soy milk (Soy milk adds extra protein naturally and creates a similarly creamy result. Use the same quantity.)
- •Raw cacao powder → Unsweetened cocoa powder (Works exactly the same in terms of texture and thickening. Flavour will be slightly less complex but still deeply chocolatey.)
- •Vanilla plant-based protein powder → Chocolate plant-based protein powder (Deepens the chocolate flavour further. You may want to reduce the cacao powder by one teaspoon to avoid bitterness.)
- •Pure maple syrup → Liquid stevia or monk fruit sweetener (Use sparingly as these are much sweeter than maple syrup. Start with just a few drops and taste before refrigerating. This swap significantly reduces sugar content.)
- •Chia seeds → Ground flaxseeds plus chia seeds combined (Replace one tablespoon of chia seeds with one tablespoon of ground flaxseeds for extra omega-3s. Use the remaining four tablespoons as chia. The texture will be slightly denser.)
🧊 Storage
Store sealed jars or airtight containers in the refrigerator for up to 4 days. Always add toppings fresh just before eating rather than storing them with the pudding. Give each portion a stir before serving and add a splash of oat milk if needed to loosen the texture.
📅 Make Ahead
This recipe is built for make-ahead preparation. Mix everything on Sunday evening and you have breakfast ready for up to four mornings. Simply double or quadruple the batch using the same ratios. The pudding actually improves after the first 12 hours as the chia seeds continue to hydrate and the flavours deepen.


