Tumbet Recipe - Traditional Balearic Vegetable Casserole

Ingredients

• 2 medium eggplants (about 1.5 lbs), sliced into 1/2-inch rounds
• 2 medium zucchinis, sliced into 1/2-inch rounds
• 2 medium Yukon Gold potatoes, peeled and sliced into 1/4-inch rounds
• 1 large red bell pepper, cut into 1-inch strips
• 1 large yellow bell pepper, cut into 1-inch strips
• 1 large sweet onion, thinly sliced
• 4 large ripe tomatoes, peeled and finely chopped
• 4 garlic cloves, minced
• 1/2 cup extra-virgin olive oil (plus more for drizzling)
• 1/2 teaspoon smoked paprika
• 1/2 teaspoon dried thyme
• 1/2 teaspoon dried oregano
• 1/4 teaspoon saffron threads, steeped in 2 tablespoons warm water
• 1/4 cup fresh flat-leaf parsley, finely chopped
• Sea salt, to taste
• Freshly ground black pepper, to taste
• 1 tablespoon sherry vinegar
• 1/2 teaspoon sugar