
Upside-Down Cherry Tomato and Red Onion Tart with Creamy Basil Polenta and White Beans
An original vegan recipe featuring a soft basil polenta base, a juicy layer of oven-caramelized cherry tomatoes and red onion, and white beans for substance. It unmolds like a striking savory tart, ideal for an elegant yet approachable main course.
Ingredients
- 400 g cherry tomatoes (cut por the mitad)
- 180 g red onion (en plumas finas)
- 240 g cooked white beans (escurridas and enjuagadas)
- 150 g polenta cornmeal (of cocción media or quick)
- 600 ml vegetable broth (low sodium if possible)
- 240 ml water (for the polenta)
- 45 ml olive oil (divided)
- 15 ml balsamic vinegar
- 10 ml maple syrup
- 3 cloves garlic (2 chopped and 1 grated)
- 20 g fresh basil (leaves sueltas, chopped or rasgadas)
- 20 g nutritional yeast
- 2 g dried thyme
- 2 g black pepper
- 6 g salt (or to taste)
- 1 cdita lemon zest
Nutrition facts
per serving
Approximate nutritional information. Estimated from the recipe’s ingredients and amounts, using standard reference nutrition values. It may vary with brands, sizes and cooking method. For guidance only; not a substitute for medical or dietary advice.
Allergens
Instructions
- 1
1. Preheat the oven to 200 °C / 400 °F. Lightly grease a 20 cm / 8-inch round pan with a little of the olive oil.
- 2
2. In a bowl, combine the cherry tomatoes, red onion, 2 minced garlic cloves, balsamic vinegar, maple syrup, 2 tablespoons olive oil, dried thyme, 1/2 teaspoon salt, and 1/2 teaspoon black pepper. Spread the mixture evenly over the bottom of the pan.
- 3
3. Bake the tomatoes and onion for 20 minutes at 200 °C / 400 °F, until juicy and lightly caramelized.
- 4
4. Meanwhile, heat the vegetable broth and water in a medium saucepan until gently boiling. Reduce the heat to medium-low and slowly whisk in the polenta to prevent lumps.
- 5
5. Cook the polenta for 8 to 10 minutes, stirring frequently, until thick and creamy. Stir in 1 tablespoon olive oil, nutritional yeast, the grated garlic clove, lemon zest, half of the basil, 1/2 teaspoon salt, and the remaining black pepper.
- 6
6. Add the cooked white beans to the polenta and fold them in gently so they do not break up too much. Cook for 2 more minutes so they heat through.
- 7
7. Remove the pan from the oven. Carefully spoon the bean polenta over the tomato and onion layer, smoothing the top with a spatula.
- 8
8. Return the pan to the oven and bake for 20 minutes more at 200 °C / 400 °F, until the top is set and the edges look lightly golden.
- 9
9. Let the tart rest for 10 minutes out of the oven. Run a knife around the edge and carefully invert onto a large plate so the tomatoes are on top.
- 10
10. Finish with the remaining basil over the top and serve hot or warm.
Chef tips
For a clean unmolding, use a well-greased metal or ceramic pan and let the tart rest before inverting. If the polenta thickens too much before assembly, stir in 2 to 3 tablespoons of hot water.
Substitutions
You can use cannellini beans or small butter beans instead of white beans. Basil can be replaced with parsley or a mix of tender herbs. If you do not have balsamic vinegar, use red wine vinegar with an extra small drizzle of maple syrup.
What I used to make it
Generic kitchen tools that work for this recipe. You don’t need to buy anything to make it.
Illustrative imageCosori Pro LE 5 Qt Air Fryer
Browning and baking with little oil
- Browns food with very little oil
- Handy for vegetables, chicken and reheating
- Check the basket capacity
Illustrative imageVictorinox Fibrox Pro 8" Chef’s Knife
Chopping, slicing and cutting strips
- The knife I use most when cooking
- Chops, slices and cuts into strips
- Keep it sharp and hand-dry it
Illustrative imageTeakhaus Teak Cutting Board
Stable base for chopping
- Stable surface for chopping
- Gentle on your knife edge
- Hand-wash and let it dry
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