This easy blender coconut oat cake comes together in one jar of your blender, with no mixing bowls or electric mixer needed. The batter is simple, the cake bakes up moist and tender, and the shredded coconut gives it a gentle, toasty sweetness. It works well as an everyday snack, an afternoon treat, or a simple dessert for a casual get-together.
Why You’ll Love This Recipe
- One-container prep: Blending the batter means less cleanup and fewer dishes.
- Simple pantry ingredients: Most of the items are common staples, plus a can of coconut milk.
- Moist texture: Oats and coconut milk keep the crumb soft for days.
- Quick to start: Most of the work is blending, so the cake is in the oven in about 10 minutes.
Ingredients
Quantities below are estimates for an 8-inch (20 cm) round pan, which makes about 8 servings.
- 1 cup (90 g) rolled oats
- 1/4 cup (30 g) all-purpose flour
- 1/2 cup (120 ml) full-fat canned coconut milk, shaken well
- 2 large eggs
- 1/3 cup (65 g) granulated sugar
- 1/4 cup (60 ml) neutral oil or melted coconut oil
- 1 tsp vanilla extract
- 1 tsp baking powder
- 1/4 tsp fine salt
- 1/4 cup (25 g) unsweetened shredded coconut, divided
- Butter or oil spray, for greasing the pan
Ingredient Notes
Rolled oats form the body of the cake. Blending them first breaks them down into a fine flour, which helps the cake hold together. The small amount of all-purpose flour adds structure, and you can use gluten-free flour if needed. Full-fat coconut milk adds richness and moisture, so avoid the light version if possible. Shredded coconut adds texture and flavor. Keep part of it aside to sprinkle on top.
Equipment You’ll Need
- High-speed or regular countertop blender
- 8-inch (20 cm) round cake pan or similar small baking pan
- Parchment paper (optional)
- Rubber spatula
- Toothpick or cake tester
- Wire rack
How to Make Blender Coconut Oat Cake
- Preheat the oven. Heat the oven to 350°F (175°C) and position a rack in the middle. Grease the 8-inch pan and line the bottom with parchment if you like.
- Make oat flour. Add the rolled oats and flour to the blender. Blend on high for 30 to 40 seconds, until the mixture looks like a fine, slightly coarse flour with no large oat pieces.
- Blend the batter. Add the coconut milk, eggs, sugar, oil, vanilla, baking powder, and salt. Blend for 30 to 45 seconds, stopping once to scrape down the sides, until the batter is smooth and pourable, similar to thin pancake batter.
- Add the coconut. Pour the batter into a bowl and stir in about three-quarters of the shredded coconut with a spatula. Let it rest for 5 minutes so the oats can soften slightly.
- Fill the pan. Pour the batter into the prepared pan and smooth the top. Sprinkle the remaining coconut evenly over the surface.
- Bake. Bake for about 25 to 30 minutes. The cake is done when the top is golden, the edges pull slightly away from the pan, and a toothpick inserted in the center comes out with a few moist crumbs but no wet batter. Ovens vary, so start checking at 25 minutes.
- Cool. Let the cake cool in the pan on a wire rack for 15 minutes. Then run a knife around the edges and remove it from the pan. Let it cool for at least another 20 minutes before slicing so the crumb can set.
Pro Tips for the Best Results
- Blend the oats fully before adding the wet ingredients. Large oat pieces make the cake gritty.
- Shake the coconut milk well before measuring, since the cream and liquid separate in the can.
- Scrape down the blender jar once or twice so no dry pockets remain.
- Check the batter’s thickness. It should pour slowly from a spatula. If it looks too thick, add 1 to 2 tablespoons of milk.
- Use a light-colored metal pan for even browning. Dark pans may brown the edges faster.
- Don’t open the oven during the first 20 minutes, or the center may sink.
Common Mistakes to Avoid
- Gritty texture: This usually means the oats weren’t blended long enough. Blend the oats alone first until they form a fine flour.
- Gummy center: Underbaking causes this. Bake until a toothpick comes out with only a few moist crumbs, and let the cake cool fully before cutting.
- Dry cake: Overbaking or measuring too much flour can dry it out. Check the cake at the earliest time in the range.
- Sticking to the pan: Grease well, or line the bottom with parchment, before adding the batter.
Variations and Substitutions
- Brown sugar: Replace the granulated sugar with packed brown sugar for a deeper, caramel-like flavor.
- Honey or maple syrup: Use about 1/4 cup (85 g) honey or maple syrup in place of the sugar, and reduce the coconut milk by 2 tablespoons. The cake may brown faster, so check it a few minutes early.
- Chocolate chips: Fold in 1/3 cup (60 g) mini chocolate chips after the coconut.
- Lemon coconut: Add 1 teaspoon lemon zest to the batter for a brighter flavor.
- Muffins: Divide the batter among a greased 12-cup muffin tin and bake for about 15 to 18 minutes, checking early.
Serving Suggestions
Serve the cake warm or at room temperature. It pairs well with a cup of coffee, tea, or a glass of cold milk. For a more dessert-style serving, add a spoonful of whipped cream, yogurt, or fresh berries. A little extra toasted coconut on top adds crunch.
Storage and Reheating
- Room temperature: Cover the cooled cake tightly and store it for up to 2 days.
- Refrigerator: Store it in an airtight container for up to 4 to 5 days. Let slices come to room temperature or warm them briefly before serving.
- Freezer: Wrap cooled slices individually and freeze for up to 2 months. Thaw at room temperature or in the refrigerator overnight.
- Reheating: Warm a slice in the microwave for 10 to 15 seconds, or in a 300°F (150°C) oven for a few minutes, to bring back a soft texture.
Frequently Asked Questions
Can I make this cake without a high-speed blender?
Yes. A regular countertop blender works, but you may need to blend the oats a little longer and scrape down the sides more often.
Can I make the batter ahead of time?
It’s best to bake the batter right after blending, since the baking powder starts working as soon as it’s mixed. If you need to wait, bake within about 15 minutes.
Why did my coconut oat cake sink in the middle?
This usually happens when the cake is underbaked or the oven door is opened too early. Bake until the center is set and a toothpick comes out with only a few moist crumbs.
Can I use dairy milk instead of coconut milk?
You can, but the cake will be less rich and may taste less coconutty. Use whole milk for the closest texture.
Is this cake dairy-free?
It can be, if you use a dairy-free oil, coconut milk, and a dairy-free pan greasing method. Check any packaged ingredients you use for hidden dairy.
Easy Blender Coconut Oat Cake Recipe Card
Recipe Name: Easy Blender Coconut Oat Cake
Short Description: A moist, quick oat cake made in a blender with coconut milk and shredded coconut.
Prep Time: 10 minutes
Cook Time: About 25 to 30 minutes
Total Time: About 1 hour, including cooling
Servings: 8
Course: Dessert, snack
Cuisine: American
Cooking Method: Blended batter, baked
Ingredients: 1 cup (90 g) rolled oats; 1/4 cup (30 g) all-purpose flour; 1/2 cup (120 ml) full-fat canned coconut milk; 2 large eggs; 1/3 cup (65 g) granulated sugar; 1/4 cup (60 ml) neutral oil or melted coconut oil; 1 tsp vanilla extract; 1 tsp baking powder; 1/4 tsp fine salt; 1/4 cup (25 g) unsweetened shredded coconut; butter or oil spray for the pan.
Instructions: Preheat the oven to 350°F (175°C). Blend the oats and flour until fine. Add the wet ingredients, sugar, baking powder, and salt, then blend until smooth. Stir in most of the coconut, pour into a greased 8-inch pan, sprinkle with the remaining coconut, and bake for 25 to 30 minutes until golden and a toothpick comes out with a few moist crumbs. Cool before slicing.
Notes: Quantities are estimates based on the original brief. Bake times vary with oven and pan type.
Storage: Keep covered at room temperature for up to 2 days, refrigerate for up to 4 to 5 days, or freeze slices for up to 2 months.
Nutrition information is not provided for this recipe.
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- Simple coconut banana bread
- No-mixer vanilla snack cake
