
This unique sweet potato tart evolved from kitchen experimentation one evening. What started as a creative way to use leftover mashed sweet potatoes has become a signature dish that never fails to impress guests with its unexpected but delicious base.
A Game-Changing Savory Base
The inspiration behind this recipe comes from combining the natural sweetness of sweet potatoes with savory ingredients. The result is an incredibly tender crust that enhances any filling. It's an excellent way to transform simple ingredients into an elegant meal.
Essential Ingredients
- 2 large sweet potatoes: Choose firm ones, about 800g total for ideal crust thickness.
- Olive oil: A generous amount for greasing the pan.
- 10cl heavy cream: Full-fat works best for richness.
- 80g gorgonzola: Crumbled into small pieces.
- 1 egg: For binding the filling.
- 300g fresh spinach: Market-fresh leaves.
- 20g pecans: For essential crunch and texture.
Step-by-Step Instructions
- Creating the Base
- Steam sweet potatoes until completely tender. Cool and mash until smooth and silky.
- Initial Baking
- Preheat oven to 180°C. Press mashed potato mixture into oiled pan and bake for 40 minutes until set.
- Preparing the Filling
- Quickly sauté spinach until just wilted but still bright green. Separately, whisk egg with cream.
- Final Assembly
- Layer spinach over base, pour cream mixture, top with gorgonzola and pecans. Bake 25 minutes more.

Professional Tips for Perfect Unmolding
For best results, use a well-oiled springform pan without parchment paper, which can interfere with the crust texture. Allow the tart to cool for 10 minutes before removing from the pan for clean, professional-looking slices.
Recipe Tips & Tricks
- → Can I prep the base earlier?
Totally! Make the sweet potato base a day in advance. Keep it in the fridge and just add the toppings before baking.
- → What’s a good substitute for gorgonzola?
You can swap it for blue cheese or Roquefort. For a milder flavor, use feta or mozzarella.
- → How can I keep the base from getting too soggy?
Make sure to drain the spinach well after cooking, and ensure the sweet potato crust is fully cooked during the first bake.
- → Is this pie freezer-friendly?
Yes, it freezes nicely after it’s cooked. Cool it down completely before freezing, and reheat in the oven later to keep it crisp.
- → What pairs well with this pie?
A simple green salad works great since the pie is already filling. For a heartier meal, serve it with a starter soup.