
This innovative sweet potato tart recipe came from experimenting in my home kitchen. What started as a creative way to use leftover mashed sweet potatoes has become one of my signature dishes that never fails to impress dinner guests with its unique twist on traditional tart bases.
A Game-Changing Sweet Potato Base
This recipe combines the natural sweetness of sweet potatoes with a lighter, healthier approach to tart making. The base has an incredibly smooth, melt-in-your-mouth texture that perfectly complements any filling. It's become my favorite way to transform simple ingredients into an elegant meal.
Essential Ingredients
- 2 large sweet potatoes: Choose firm ones, about 800g total for optimal tart size
- Olive oil: Generous amount for greasing the pan
- 10cl heavy cream: Full-fat works best for richness
- 80g gorgonzola cheese: Crumbled into small pieces
- 1 egg: For binding the filling
- 300g fresh spinach: Market-fresh baby spinach preferred
- 20g pecans: For essential crunch and texture
Step-by-Step Instructions
- Preparing the Base
- Steam sweet potatoes until tender, then let cool and mash until silky smooth.
- Creating the Crust
- Preheat oven to 180°C. Press mashed potatoes into oiled pan and bake for 40 minutes until set.
- Making the Filling
- Quickly sauté spinach until just wilted but still bright green. Separately, whisk egg with cream.
- Final Assembly
- Layer spinach on base, pour cream mixture over top, sprinkle with gorgonzola and pecans. Bake 25 minutes more.

Perfect Unmolding Technique
For best results, always use a well-oiled springform pan. Avoid parchment paper as it interferes with the crust texture. Let the tart cool for 10 minutes before removing from the pan for clean, precise slices.
Recipe Tips
- → Can I make the crust ahead of time?
Absolutely! You can prepare the sweet potato base a day in advance. Just keep it chilled in the fridge and add your toppings before baking.
- → Is there a substitute for gorgonzola?
Sure! Swap out gorgonzola with blue cheese, like Roquefort, or even feta for a milder taste. Mozzarella also works great.
- → How do I avoid sogginess in the crust?
Make sure to remove excess water from the spinach after cooking. Also, ensure the sweet potato base is fully cooked during the first bake.
- → Can I freeze this tart?
Yes, it freezes wonderfully after baking! Let it cool first, then store it in the freezer. Reheat in the oven to bring back its crisp texture.
- → What goes well as a side with this tart?
A simple green salad with dressing is perfect since the tart is quite filling. For a heartier meal, serve it with a soup starter.