Blueberry Overnight Oats (Gluten Free + Vegan)

Creamy, naturally sweet, and made with 6 simple ingredients. These blueberry overnight oats are gluten free, vegan, and ready in 5 minutes the night before, so breakfast handles itself while you sleep.

If you’ve ever stood in front of the fridge at 6:47am holding a granola bar wondering if it counts as breakfast, this one is for you.

Blueberry overnight oats are rolled oats soaked in plant milk with chia seeds, maple syrup, and blueberries, then chilled overnight until they turn creamy and pudding-like. No stove, no waiting, no thinking before coffee. You just pull a jar out of the fridge and you’re done.

I’ve been making these on repeat for years and they’re still the recipe my husband swipes from the fridge before I’m even awake. They’re naturally gluten free (with certified GF oats), fully vegan, and the whole batch comes together in about 5 minutes of prep before bed. That’s it. That’s the recipe.

If you’re new to overnight oats: cold breakfast sounds weird until you’ve had one. The texture is closer to a thick yogurt parfait than to porridge, and the blueberries soften and sweeten the whole jar overnight. It’s the same energy as cold pizza for breakfast, but on purpose.

Why You’ll Love These Blueberry Overnight Oats

• 5 minutes of prep, zero morning effort. Mix it the night before, eat it the next morning. The fridge does all the work.
• 6 simple ingredients. Nothing weird, nothing expensive, nothing you have to order online.
• Naturally gluten free and vegan. With certified GF oats and plant milk, this works for almost every diet without losing flavor.
• Meal prep friendly. Double or triple the batch on Sunday night and you’ve got breakfast handled until Wednesday.
• Actually creamy. The chia seeds bloom in the milk overnight and turn the whole thing into something that tastes like a treat, not a chore.

Ingredients You’ll Need

Here’s everything that goes into these blueberry overnight oats. Full measurements are in the recipe card at the bottom of the post.

• Certified gluten free rolled oats — old fashioned rolled oats or quick oats both work. Skip steel-cut oats, they stay chewy and never soften the way you want. If you’re not celiac or gluten intolerant, regular rolled oats work the same.
• Chia seeds — these are the magic. They absorb the liquid overnight and turn the oats from “soggy cereal” into “actually creamy.” They also add fiber, omega-3s, and a little protein. Don’t skip them.
• Unsweetened almond milk — any plant milk works. Oat milk, soy milk, cashew milk, coconut milk drink, whatever you have open. Use unsweetened so you control the sugar.
• Full-fat coconut milk — the canned kind. This is what makes the oats taste rich instead of watery. A little goes a long way.
• Pure maple syrup — natural sweetness without the sugar crash. Honey works if you’re not strictly vegan.
• Vanilla extract — small thing, big difference. Vanilla makes every breakfast taste like it was made by someone who actually likes you.
• Fresh blueberries — wild blueberries are the move if you can find them, they’re smaller and more intense in flavor. Regular blueberries are great too. Frozen work in a pinch (more on that below).
• Cacao nibs (optional topping) — a little crunch and a little bitter chocolate to balance the sweetness. Optional but recommended.

How to Make Blueberry Overnight Oats

This is genuinely the easiest recipe on my whole blog. Three steps.

1. Combine the dry ingredients. Add the gluten free oats and chia seeds to a mason jar or small bowl.
2. Add the wet ingredients. Pour in the almond milk, coconut milk, maple syrup, and vanilla. Stir well until everything’s mixed and the oats are fully submerged. Make sure you stir the chia seeds in well, they like to clump on the bottom.
3. Cover and chill overnight. Pop a lid on the jar and refrigerate for at least 4 hours, but overnight is better. In the morning, give it a quick stir, top with blueberries, cacao nibs, and any other toppings you love. Eat cold from the jar.

That’s it. That is the whole recipe. If you waited for the dramatic third twist, there isn’t one.

Variations + Substitutions

The base recipe is a blank canvas. Here are the riffs I make on repeat:

• Frozen blueberries — totally fine. Just back off the almond milk by a tablespoon, because frozen berries release water as they thaw. Stir them in the night before and they’ll be perfectly soft by morning.
• Add protein — stir in a scoop of vanilla protein powder before chilling, and bump the almond milk by 2-3 tablespoons since the protein soaks up extra liquid. (If you want a fully high-protein version, try my Raspberry White Chocolate Protein Overnight Oats instead.)
• Lemon-blueberry — add a teaspoon of lemon zest and a squeeze of fresh lemon juice. Blueberry and lemon are undefeated.
• Make it nutty — stir in a tablespoon of almond butter or peanut butter before chilling, or top with chopped almonds, walnuts, or pecans in the morning.
• Coconut blueberry — add a tablespoon of shredded coconut to the oats, top with coconut yogurt in the morning. Tastes like vacation.
• Lower sugar — skip the maple syrup and mash half a ripe banana into the oats instead. Naturally sweet, zero added sugar.
• Use Greek yogurt — if you’re not vegan, swap the coconut milk for a few spoonfuls of full-fat Greek yogurt. Bumps the protein and makes it even creamier.

How to Store

Blueberry overnight oats keep in an airtight container in the fridge for up to 4 days. They get softer the longer they sit, so days 1-3 are best. Add fresh blueberries and any crunchy toppings right before eating so they don’t go soggy. Don’t freeze them, the texture turns weird and you’ll be sad about it.

Frequently Asked Questions

Are blueberry overnight oats actually healthy? Yes. Blueberry overnight oats are high in fiber from the oats and chia seeds, packed with antioxidants from the blueberries, and naturally sweetened with maple syrup instead of refined sugar. One serving of this recipe has 9g of protein, 9g of fiber, and 13g of natural sugar. It’s a balanced breakfast that keeps you full for hours.

Can you use frozen blueberries in overnight oats? Yes. Frozen blueberries work great in overnight oats and they thaw overnight in the fridge, releasing a little juice that turns the oats a beautiful purple color. Just reduce the almond milk by about a tablespoon to account for the extra liquid.

How long do blueberry overnight oats last in the fridge? Stored in a sealed jar or container, blueberry overnight oats last up to 4 days in the fridge. They’re best on days 1-3 when the texture is freshest.

Can you eat overnight oats warm? Yes. They’re traditionally eaten cold straight from the jar, but you can microwave them for 30-45 seconds if you want something warm. I prefer them cold, but my mom is firmly team warm, so do you.

Are oats gluten free? Oats are naturally gluten free, but they’re often processed in facilities that also handle wheat, which means cross-contamination is common. If you’re celiac or gluten intolerant, always look for certified gluten free oats on the label. If you’re not, regular rolled oats are fine.

Do you have to use chia seeds? Chia seeds are what makes the texture creamy and thick instead of soupy, so I really don’t recommend skipping them. If you genuinely don’t have any, use 1 tablespoon of ground flax meal instead, or reduce the total milk by ¼ cup so the oats don’t end up watery.

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Blueberry Overnight Oats (Gluten Free + Vegan)

Creamy, naturally sweet blueberry overnight oats made with 6 simple ingredients. Gluten free, vegan, and ready in 5 minutes of prep the night before.

Prep Time5 minutes mins

Chill Time4 hours hrs

Total Time4 hours hrs 5 minutes mins

Course: Overnight Oats

Cuisine: American

Servings: 1 serving

Calories: 359kcal

Author: Bailey Campbell

Cook ModePrevent your screen from going to sleep

Ingredients 

1x2x3x4x

• ½ cup gluten free rolled oats
• 1 tbsp chia seeds
• ½ cup unsweetened almond milk
• ¼ cup full fat coconut milk
• 1 tbsp sugar-free maple syrup
• 1 tsp vanilla extract
• blueberries
• cacao nibs

Instructions

• Combine gluten free oats with chia seeds in a mason jar or small bowl.
• Add unsweetened almond milk, coconut milk, maple syrup, vanilla and mix well.
• Cover and refrigerate overnight. Top with blueberries, cacao nibs, coconut yogurt, nut butter, more almond milk, or whatever toppings you desire!

Notes

You can make this recipe with regular quick oats, they do not have to be gluten-free if you don't have celiac disease. And if you’re not into plant-based milk you can use regular milk instead for the same results! 

You can also substitute the maple syrup for honey (as long as you’re not vegan) or for sweetener of choice.

Nutrition

Serving: 1grams | Calories: 359kcal | Carbohydrates: 37g | Protein: 9g | Fat: 20g | Saturated Fat: 12g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 2g | Trans Fat: 0.02g | Sodium: 217mg | Potassium: 327mg | Fiber: 9g | Sugar: 1g | Vitamin A: 6IU | Vitamin C: 1mg | Calcium: 258mg | Iron: 5mg

The nutrition information provided is calculated based on industry-standard software and should be used as a general guide only. The information may vary depending on ingredient substitutions, cooking techniques, and individual serving sizes. It is the responsibility of the reader to ensure the accuracy and appropriateness of the nutritional information provided. Always consult a qualified healthcare provider for personalized medical or nutritional advice.

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More Overnight Oats Recipes You’ll Love

• Carrot Cake Overnight Oats
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• Chocolate Peanut Butter Overnight Oats
• Lemon Cheesecake Overnight Oats
• Key Lime Pie Overnight Oats
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If you made these blueberry overnight oats, I’d love to hear about it. Leave a star rating and a comment below, share a photo on Instagram and tag @basicswithbails, or pin it for later on Pinterest. It genuinely makes my day every time.