I make this cake when I want something that feels indulgent but doesn’t weigh us down. It pairs the bright pop of fresh blueberries with a nut-forward, cinnamon-swirled topping — and it manages to stay gluten-free, grain-free, and genuinely satisfying. It’s one of those recipes that lands at brunch, afternoon coffee, or a simple dessert without much fuss.
The texture is tender and moist thanks to almond flour and a touch of coconut flour, and the walnut-cinnamon swirl keeps every bite interesting. It’s not overly sweet; the natural maple or honey and coconut sugar let the blueberries shine. If you’re watching flour or just want a slightly lighter sweet option, this is a dependable choice.
I’ll walk you through the exact ingredients, every oven step, the tools I use, and common mistakes to watch for — plus storage notes so you can make it ahead. No fluff. Just a friendly, practical guide so your cake turns out great the first time.
Gather These Ingredients
Ingredients
- 3/4 cup coconut flour — very absorbent; helps create structure without wheat flour. Measure carefully and sift if clumpy.
- 3/4 cup finely ground almond flour* — gives tenderness and moistness; use fine grind for the best texture.
- 1/2 tsp baking soda — leavener that gives lift; make sure it’s fresh for proper rise.
- 1/2 tsp sea salt — balances sweetness and enhances flavor; use fine or flaky salt measured by volume.
- 4 large eggs — bind and provide structure; room temperature eggs mix more evenly.
- 1/4 cup pure maple syrup or honey — primary sweetener; choose maple for a neutral flavor or honey for floral notes.
- 3/4 cup full-fat canned coconut milk — adds richness and moisture; shake can before opening for even consistency.
- 1/4 cup coconut oil melted and cooled — keeps cake tender and adds subtle coconut flavor; cool slightly so it doesn’t cook the eggs.
- 1 tsp pure vanilla extract — rounds flavors and lifts the blueberries.
- 2/3 cup fresh blueberries — use fresh for best texture; gently fold in to avoid bursting.
- 1 cup raw walnuts chopped — creates the crunchy, cinnamon topping; chop to even pieces so topping bakes uniformly.
- 3 Tbsp coconut oil melted — part of the walnut topping; helps bind and toast the nuts.
- 2 Tbsp coconut sugar or pure maple syrup — sweetens the topping; coconut sugar gives depth, maple keeps the mix looser.
- 2 tsp ground cinnamon — warm spice for the swirl; use fresh for best aroma.
- 1 pinch sea salt — amplifies the nutty, cinnamon notes in the topping.
Cooking Healthy Blueberry Coffee Cake: The Process
- Preheat the oven to 350°F (175°C). Line an 8″ x 8″ cake pan with parchment paper, letting the parchment hang over the sides for easy removal.
- In a large bowl, stir together the finely ground almond flour, coconut flour, baking soda, and 1/2 teaspoon sea salt until evenly combined.
- In a separate medium bowl, whisk the 4 large eggs, 1/4 cup pure maple syrup or honey, 3/4 cup full-fat canned coconut milk, 1/4 cup melted and cooled coconut oil, and 1 teaspoon pure vanilla extract until smooth.
- Pour the dry ingredients into the wet ingredients and stir until a thick, uniform batter forms. Gently fold in the 2/3 cup fresh blueberries.
- In a small bowl, stir together the 1 cup raw walnuts (chopped), 3 tablespoons melted coconut oil, 2 tablespoons coconut sugar or pure maple syrup, 2 teaspoons ground cinnamon, and a pinch of sea salt until the walnut mixture is evenly coated and spreadable.
- Pour about 1/2 to 2/3 of the batter into the prepared pan and smooth into an even layer with a spatula.
- Spread about 1/2 to 2/3 of the walnut cinnamon topping evenly over the batter layer. Use a knife or skewer to swirl the topping into the batter by dragging it through the topping and batter in a few large figure-eight or circular motions.
- Pour the remaining batter over the swirled layer and smooth gently. Spread the remaining walnut topping over the top and swirl once more to create a marbled effect.
- Cover the pan loosely with foil and bake on the center rack for 30 minutes. Remove the foil and continue baking for another 15–20 minutes, or until the cake is set in the center, the edges are golden brown, and an inserted thermometer reads 190°F or higher in the center.
- Remove the cake from the oven and transfer the pan to a wire rack. Allow the cake to cool completely to room temperature (at least 30 minutes) before lifting out with the parchment overhang and slicing.
- Slice and serve.
What Sets This Recipe Apart
This coffee cake uses almond and coconut flours instead of wheat — that changes the texture and flavor significantly. Rather than relying on a heavy amount of sugar, it uses maple syrup or honey and a small amount of coconut sugar in the topping, so the cake tastes naturally sweet with prominent nut and blueberry notes. The walnut-cinnamon swirl adds crunch and a toasty depth you expect from traditional coffee cakes, but with cleaner ingredients.
It’s also forgiving: the batter is thick, easy to spread, and the swirl technique masks small inconsistencies. The coconut milk and oil deliver richness without butter, and the eggs provide lift and stability. If you want a gluten-free, slightly lower-glycemic coffee cake that still feels homey, this one fits the bill.
International Equivalents
Here are quick swaps if you’re baking outside North America:
- Cups to grams — almond flour: ~96 g per 3/4 cup; coconut flour: ~75 g per 3/4 cup. For precision, weigh your flours if possible.
- Oven temp — 350°F equals 175°C (as noted). Gas ovens: preheat to mark 4 if no temperature gauge.
- Sugars — use light muscovado or soft brown sugar in place of coconut sugar for a similar depth, keeping the same volume.
- Oils — if coconut oil is unavailable, refined olive oil is a possible swap, but flavor will change; keep the same volume.
Toolbox for This Recipe
- 8″ x 8″ square cake pan (lined with parchment for easy removal).
- Mixing bowls — one large for dry, one medium for wet.
- Wooden spoon or silicone spatula for folding batter.
- Small bowl for making the walnut-cinnamon topping.
- Knife or skewer to create swirls.
- Wire rack for cooling and an instant-read thermometer to check for 190°F in the center.
Pitfalls & How to Prevent Them
Below are the most common problems and how I handle them in my kitchen.
Dry or crumbly cake
Cause: too much coconut flour or overbaking. Coconut flour is highly absorbent so be precise with the 3/4 cup amount and follow the bake times closely. If your oven runs hot, start checking at the lower end of the final bake time.
Soggy center
Cause: underbaking or too much filling/topping weight. Make sure you bake until an instant-read thermometer hits 190°F in the center and the edges look set and golden. Don’t rush the cooling step — the cake firms as it cools.
Blueberries sinking / bursting
Cause: folding too aggressively or using very large berries. Gently fold in the 2/3 cup fresh blueberries and, if needed, toss them lightly in a teaspoon of almond flour before folding to help them stay suspended.
Topping slides or doesn’t swirl
Tip: the walnut topping should be spreadable. If it’s too loose, chill briefly; if too stiff, warm a touch of coconut oil. Swirl with a light hand — a few figure-eights are enough.
Seasonal Spins
The base batter is forgiving to seasonal changes. Here are a few ideas that work well:
- Spring: add 1 teaspoon lemon zest to the batter for brightness; blueberries and lemon are a classic match.
- Summer: increase fresh berries to a full cup if you love a fruitier cake, or fold in a few halved strawberries with the blueberries.
- Autumn: swap the cinnamon in the topping for 1 teaspoon pumpkin pie spice or add 1/4 cup pumpkin puree to the batter (reduce coconut milk slightly to keep batter thickness).
- Winter: fold in 1/4 cup dried cranberries and a sprinkle of orange zest to add winter citrus notes.
Behind the Recipe
I developed this cake after years of tweaking weekend bakes. Almond flour gives the crumb a tender, moist quality, and coconut flour keeps the cake from collapsing or tasting too dense. The walnut-cinnamon swirl nods to the classic coffee cake, but the choice of coconut oil and coconut milk keeps it dairy-free while preserving richness.
I test for texture over sweetness — I prefer a cake that pairs well with coffee or tea, not one that replaces dessert. That led to the lower sweetener quantities and the crunchy nut topping to balance textures. The result: a dependable, year-round cake that feels thoughtful and not heavy.
Make-Ahead & Storage
Make-Ahead: You can bake the cake up to 24 hours in advance. Cool completely, then wrap the whole cake tightly in plastic wrap and store at room temperature for up to one day. For longer storage, refrigerate in an airtight container for up to 4 days.
Freezing: Slice the cooled cake, wrap individual slices in plastic wrap, then place in a freezer bag for up to 3 months. Thaw in the fridge overnight and bring to room temperature before serving, or warm gently in a low oven.
Reheating: Warm slices in a 300°F (150°C) oven for 8–10 minutes or microwave for 15–25 seconds to revive the texture. Warmth brings back the aroma of cinnamon and nuts.
Healthy Blueberry Coffee Cake FAQs
- Can I use frozen blueberries? — You can, but fold them in frozen to reduce bleeding; increase bake time slightly and expect a bit more moisture.
- Can I make this nut-free? — The recipe relies on almond flour and walnuts; substituting both is tricky. If you need nut-free, consider a different base flour and a new topping rather than simple swaps.
- Can I use dairy milk instead of coconut milk? — Yes. Use the same volume (3/4 cup) of whole milk for richness; flavor will be slightly different but the structure holds.
- Is the cake suitable for diabetics? — It uses natural sweeteners and less sugar than many coffee cakes, but it still contains sugars and carbs. Consult a diet plan or healthcare provider for individual guidance.
- Why is the thermometer target 190°F? — That ensures the center is set and proteins have cooked through without overbaking the edges.
That’s a Wrap
Make this cake when you want something that feels a little special but is still sensible. It’s sturdy enough for packing in a brunch spread, gentle enough for a weekday coffee, and forgiving enough for home bakers who don’t measure like professionals. Follow the ingredients and the steps above, watch the bake time, and you’ll have a nutty, cinnamony, blueberry-forward cake that everyone will ask for again.
If you try it, tell me how you tweaked it. I love hearing whether you added lemon or swapped nuts — those small changes are how new classics are born.
Healthy Blueberry Coffee Cake
Ingredients
Ingredients
- 3/4 cupcoconut flour
- 3/4 cupfinely ground almond flour*
- 1/2 tspbaking soda
- 1/2 tspsea salt
- 4 largeeggs
- 1/4 cuppure maple syrupor honey
- 3/4 cupfull-fat canned coconut milk
- 1/4 cupcoconut oilmelted and cooled
- 1 tsppure vanilla extract
- 2/3 cupfresh blueberries
- 1 cupraw walnutschopped
- 3 Tbspcoconut oilmelted
- 2 Tbspcoconut sugaror pure maple syrup
- 2 tspground cinnamon
- 1 pinchsea salt
Instructions
Instructions
- Preheat the oven to 350°F (175°C). Line an 8" x 8" cake pan with parchment paper, letting the parchment hang over the sides for easy removal.
- In a large bowl, stir together the finely ground almond flour, coconut flour, baking soda, and 1/2 teaspoon sea salt until evenly combined.
- In a separate medium bowl, whisk the 4 large eggs, 1/4 cup pure maple syrup or honey, 3/4 cup full-fat canned coconut milk, 1/4 cup melted and cooled coconut oil, and 1 teaspoon pure vanilla extract until smooth.
- Pour the dry ingredients into the wet ingredients and stir until a thick, uniform batter forms. Gently fold in the 2/3 cup fresh blueberries.
- In a small bowl, stir together the 1 cup raw walnuts (chopped), 3 tablespoons melted coconut oil, 2 tablespoons coconut sugar or pure maple syrup, 2 teaspoons ground cinnamon, and a pinch of sea salt until the walnut mixture is evenly coated and spreadable.
- Pour about 1/2 to 2/3 of the batter into the prepared pan and smooth into an even layer with a spatula.
- Spread about 1/2 to 2/3 of the walnut cinnamon topping evenly over the batter layer. Use a knife or skewer to swirl the topping into the batter by dragging it through the topping and batter in a few large figure-eight or circular motions.
- Pour the remaining batter over the swirled layer and smooth gently. Spread the remaining walnut topping over the top and swirl once more to create a marbled effect.
- Cover the pan loosely with foil and bake on the center rack for 30 minutes. Remove the foil and continue baking for another 15–20 minutes, or until the cake is set in the center, the edges are golden brown, and an inserted thermometer reads 190°F or higher in the center.
- Remove the cake from the oven and transfer the pan to a wire rack. Allow the cake to cool completely to room temperature (at least 30 minutes) before lifting out with the parchment overhang and slicing.
- Slice and serve.
Equipment
- 8x8-inch cake pan
- Parchment Paper
- Mixing bowls
- Whisk
- Spatula
- Small Bowl
- Knife or Skewer
- Foil
- Oven
- Wire Rack
- Thermometer
Notes
*You can replace the almond flour with 1/2 cup of tapioca flour. I don’t recommend using any other flour replacement option for the best results 🙂
