Pai Samosa Sayur

Bahan-bahan (6 porsi)

• 700 g / 1.4lb potato (, cut into 2cm / 4/5" pieces)
• 3 tbsp vegetable oil
• 1.5 tsp black mustard seeds ((Note 1))
• 1 tsp cumin seeds ((Note 2))
• 1 tsp fennel seeds ((Note 2))
• 15 curry leaves (, fresh (Note 3))
• 1 tbsp garlic (, finely grated)
• 1 tbsp ginger (, finely grated)
• 1 onion (, finely chopped (brown, white, yellow))
• 1/2 tsp turmeric powder
• 2 tsp curry powder ((Note 4))
• 1/2 tsp chilli powder (, adjust spiciness to taste ((pure ground, not US Chili Spice Mi, sub cayenne))
• 1 tbsp tomato paste
• 1 tomato * (, chopped into 1.5cm / 1/2" pieces)
• 1 zucchini * (, chopped into 1.5cm / 1/2" pieces)
• 1 carrot * (, chopped into 1.5cm / 1/2" pieces)
• 1/2 cauliflower * ((small), cut/broken into small florets (~ 3 cups))
• 1/2 tsp black pepper
• 1 tsp salt
• 2 cups water
• 1 cup frozen green peas *
• 2 sheets puff pastry ((Note 5))
• 1 egg (, lightly whisked)
• Plain yogurt
• Coriander/cilantro leaves (, option (decorative only, pictured))