My mango coconut overnight oats use a trick I haven’t seen anywhere else: frozen mango goes straight into the jar and thaws overnight, releasing juice directly into the oats. Vegan, gluten-free with certified GF oats, and 5 minutes to assemble.
Frozen mango changes everything about these overnight oats
I grew up eating mangoes all summer in India — it was my favorite fruit, and summer didn’t start until the first box of Alphonsos showed up. This recipe is my way of getting that same mango-saturated feeling into breakfast without standing over a stove.
Most mango overnight oats treat mango as a topping. Mine builds it in. Frozen chunks go straight into the jar, and by morning they’ve thawed, softened, and released their juice into the oats. The result tastes like the oats absorbed mango rather than having it piled on top.
The base is a split of soy milk and full-fat coconut milk — soy for body, coconut for richness — and cashew butter stirs in for creaminess without competing with the mango the way peanut butter would.
The lime zest on top isn’t optional. It pulls everything together — cuts through the sweetness and makes the whole jar taste brighter. I tested this without it once and it tasted flat. Three tablespoons of chia seeds is also non-negotiable; two left the texture too loose by morning.
Key ingredients and mix-ins
Full ingredient list and detailed instructions in the recipe card.
- Frozen mango chunks go in straight from the freezer — don’t thaw first. Overnight they soften and release natural sweetness into the oats, so you need less maple syrup than you’d expect. Fresh mango as a topping in the morning gives you two textures: the soft, jam-like mango throughout and the firm, fresh cubes on top.
- Cashew butter is deliberate here. Peanut butter and almond butter both overpower mango — I tested all three. Cashew is mild enough to add creaminess without hijacking the flavor. Stir it in thoroughly; it likes to clump at the bottom of the jar.
- Full-fat coconut milk, shaken well adds richness and coconut flavor without making this a full coconut milk recipe. The soy milk does the protein work; the coconut milk does the flavor work.
- Lime zest — fresh, on a Microplane — finishes the whole thing. It cuts through the sweetness and rounds out the tropical flavor. Skip it and you’ll notice something’s missing.
Shruthi’s Top Tips
Tips for the best mango coconut overnight oats
- Don’t thaw the mango before adding it. The whole point is that it thaws in the jar and flavors the oats from the inside. Thawing first loses half the effect.
- Three tablespoons of chia seeds, not two. I tested both — two left the oats too thin by morning. Three gives you a thick, spoonable texture.
- Toast the coconut flakes yourself in a dry skillet for 2–3 minutes. Pre-toasted store-bought coconut doesn’t have the same crunch or flavor.
- Scale up by multiplying everything — I usually make 4–5 jars on Sunday night for the week. Add toppings fresh each morning.
- If the oats are too thick after sitting, stir in a splash of soy milk to loosen.
How to make mango coconut chia overnight oats
- Mix the base. Add oats, soy milk, coconut milk, chia seeds, cashew butter, frozen mango, maple syrup, and salt to a jar. Stir well until the cashew butter is fully incorporated — it tends to sit in a clump if you don’t mix thoroughly.
- Chill overnight. Seal and refrigerate overnight or at least 8 hours. The frozen mango thaws and releases juice into the oats while the chia seeds absorb liquid and thicken the base.
- Top and serve. In the morning, stir well. The mango will have softened and partially broken down. Top with fresh mango cubes, toasted coconut flakes, and fresh lime zest. Serve cold.
How to serve mango coconut chia overnight oats
Serve cold with coffee or tea for a complete breakfast. Add fresh fruit on the side if you want to lighten it up.
Storage and reheating suggestions
Store in the fridge without toppings for up to 5 days — add fresh mango, coconut flakes, and lime zest just before eating. Not recommended for freezing.
More high protein overnight oats
Love these oats? Try these other high protein overnight oats next.
Strawberry Cheesecake Overnight Oats
Peanut Butter Banana Overnight Oats
Cookie Dough Overnight Oats with Cottage Cheese
Double Chocolate Overnight Oats
Mango Coconut Overnight Oats
Ingredients
For the oats:
- ½ cup rolled oats
- ¾ cup unsweetened soy milk
- ⅓ cup full-fat coconut milk, shaken well
- 3 tablespoons chia seeds
- 2 tablespoons cashew butter
- ½ cup frozen mango chunks, goes in frozen — do not thaw
- 1 tablespoon pure maple syrup
Toppings:
- ¼ cup fresh mango, cubed
- 1 teaspoon unsweetened coconut flakes, toasted
- 1 teaspoon fresh lime zest, from 1 medium lime
Instructions
- Add oats, soy milk, coconut milk, chia seeds, cashew butter, frozen mango, and maple syrup to a jar. Stir well until the cashew butter is fully incorporated.
- Seal and refrigerate overnight or at least 8 hours. The frozen mango thaws overnight and releases natural juice into the oats.
- In the morning, stir well. Top with fresh mango cubes, toasted coconut flakes, and fresh lime zest. Serve cold.
Notes
- The frozen mango goes in straight from the freezer — do not thaw first. It releases natural sweetness and juice into the oats overnight.
- To use a full 13.5-oz can of coconut milk, multiply this recipe by 5. Make 5 jars at once and refrigerate for the week.
- Scale up easily — multiply all ingredients by however many jars you want to make.
- Refrigerate in a sealed jar up to 5 days without toppings. Add fresh toppings before serving.
- Do not freeze — the texture suffers significantly after thawing.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
