Caramelized Onion Tart

Homemade caramelized onion tart made with red onions, leek, and other healthy ingredients. This onion pie is called “Zwiebelkuchen” in Germany and it’s a traditional fall recipe. The dish is vegan, gluten-free, soy-free, easy to make, flavorful, and delicious. Recipe is adapted from Ela Vegan and serves 8.

Ingredients

Pie Crust:

• 1 cup + 1 tbsp (160 g) flour (regular or gluten-free or spelt flour)

• 1/2 cup (60 g) almond flour (ground almonds – or can use ground walnuts or other nuts)

• 2 tbsp ground flax seeds or chia seeds

• 5 tbsp water

• 2 1/2 tbsp (30 g) coconut oil softened

• 1/3 tsp sea salt

Onion Tart Filling:

• 3 medium-large (300 g) onions peeled and diced

• 2 medium (200 g) bell peppers diced

• 2 small (130 g) stalks of leek finely chopped

• 3 cloves of garlic minced

• 3 tbsp (30 g) chickpea flour

• 1 heaped tbsp (10 g) cornstarch or arrowroot flour

• 1/3 cup (80 ml) water or vegetable broth

• 1 tsp onion powder

• 3/4 tsp sea salt or more/less to taste

• 1/2 tsp paprika

• 1/2 tsp cumin (optional)

• ground black pepper to taste

• 1/2 tbsp fresh thyme or 1/2 tsp dry

• 1 tbsp tamari or soy sauce (GF if needed) or coconut aminos

• 3/4 cup (180 ml) plant-based milk

• 7 oz (200 g) vegan cheese of choice (optional)

• Fried onion rings on top (optional)

Instructions

1. Preheat the oven to 400F.

2. Put 2 tbsp ground flax seeds (or ground chia seeds) in a small bowl, add 5 tablespoons of water and mix. Set aside for 5 minutes.

3. For the pie crust, simply add all ingredients to a bowl and mix with a spatula or your hands until the dough sticks together. You can also use a food processor.

4. Press the dough into a greased/oiled 8-inch tart or pie dish and up the sides. Put it into the fridge.

5. Mix the chickpea flour, cornstarch, spices, and water or vegetable broth in a bowl with a whisk. Set aside.

6. Heat oil in a pan over low/medium heat and add the chopped onion, leek, and bell pepper. Cook the veggies with a lid on for about 15-20 minutes or until lightly caramelized, stirring frequently. Stir in garlic for the last few minutes.

7. Add the chickpea flour mixture and stir immediately, as it will thicken very quickly. Also, add plant-based milk and tamari.

8. Let simmer for a few more minutes (the mixture should thicken considerably), then turn off the heat. Pour the filling into the pie crust and smooth it evenly.

9. You can also add vegan cheese of choice and pan-fried onion rings on top but this step is optional.

10. Bake in the oven for about 25-30 minutes or until nicely browned. Enjoy!

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