A delicious low-sugar chocolate cake made extra healthy with hidden sweet potato — a simple way to add vegetables into a family dessert.
Let’s be honest: a good slice of chocolate cake is hard to beat. Store-bought versions are often loaded with sugar, artificial colours and preservatives, but you can make a cleaner, lower-sugar version at home that still tastes indulgent. This sweet potato chocolate cake is moist, naturally sweetened and packed with nutrition thanks to mashed sweet potato. It’s an easy, family-friendly recipe that works well for packed lunches, afternoon treats or a simple dessert served with yogurt and fresh berries.
My children adore cake, and I prefer to bake at home when I can — it gives me control over the ingredients and lets me cut down on added sugar. This recipe is forgiving and straightforward, so even if you’re not a confident baker it’s a great one to try. The sweet potato blends into the batter, adding moisture and subtle natural sweetness without overpowering the chocolate flavour.
Notes before you start: you can cook and mash sweet potato specifically for this recipe, or use leftover mash from another meal — just make sure it has cooled to room temperature. The recipe is egg-free and can be made dairy-free if you select dairy-free chocolate chips. If allergies or dietary preferences are a concern, swap ingredients where needed and test small changes first.
Sweet Potato Chocolate Cake
- Author: Ciara Attwell @ My Fussy Eater
- Prep Time: 10 mins
- Cook Time: 20 mins
- Total Time: 30 minutes
- Yield: 6 servings
- Category: Dessert
- Method: Baked
- Cuisine: European
Description
This low-sugar chocolate cake uses mashed sweet potato to create a moist, tender crumb and to add a nutritional boost. It’s sweetened lightly with apple sauce and a small amount of brown sugar, while cocoa and chocolate chips give it a satisfying chocolate taste. Serve warm with Greek yogurt and fresh berries for contrast, or enjoy as a snack with a cup of tea. The texture is soft and family-friendly, and the recipe adapts easily for dairy-free or egg-free needs.
Ingredients
- 200g (1 cup) mashed sweet potato, cooled to room temperature
- 100g (½ cup) apple sauce
- 80ml (⅓ cup) melted coconut oil
- 1 tsp vanilla extract
- 60g (½ cup) plain flour
- 60g (½ cup) wholemeal flour
- 30g (¼ cup) light brown sugar
- 25g (½ cup) unsweetened cocoa powder
- 1 tsp baking powder
- 1 tsp bicarbonate of soda
- 50g (¼ cup) chocolate chips (use dairy-free chips to make dairy-free)
- To serve: Greek yogurt and fresh raspberries or blueberries
The ingredient quantities above serve about six people. You can scale the recipe up or down depending on your needs. Leftover mashed sweet potato is ideal for this cake — ensure it is smooth and not too watery for best results.
Instructions
- Preheat the oven to 180°C (350°F). Grease and line a 9-inch round cake pan with parchment paper.
- In a bowl, combine the mashed sweet potato, apple sauce, melted coconut oil and vanilla extract. Mix until smooth.
- In a separate larger bowl, whisk together the plain and wholemeal flour, brown sugar, cocoa powder, baking powder and bicarbonate of soda. Stir in the chocolate chips.
- Fold the wet ingredients into the dry mixture until just combined. Avoid over-mixing to keep the cake tender.
- Pour the batter into the prepared pan and smooth the top. Bake for 20–25 minutes or until a skewer inserted into the centre comes out clean or with a few moist crumbs.
- Allow the cake to cool in the tin for about 10 minutes, then transfer to a wire rack to cool completely.
- Serve slices with Greek yogurt and fresh berries, or sprinkle a few extra chocolate chips on top while still slightly warm for a melty finish.
Tips and variations
- To make the cake gluten-free, substitute a gluten-free plain flour blend in equal amounts.
- If you prefer a less sweet cake, reduce the brown sugar slightly or omit the chocolate chips and serve with a berry compote.
- For a more intense chocolate flavour, use a higher-quality cocoa powder or add a small handful of chopped dark chocolate into the batter.
- Store any leftover cake in an airtight container in the fridge for up to 3 days. It also freezes well—slice and wrap individual portions for convenient snacks.
