Sri Lankan Pineapple Curry

Ingredients

• 2 tablespoons coconut or vegetable oil
• 1 teaspoon black mustard seeds
• 10-12 curry leaves
• 3-4 pandan/rampe leaves, inch-long pieces (optional)
• 2-3 cinnamon sticks
• 1 small onion, chopped or sliced thin
• 1/2 teaspoon garlic paste
• 1 teaspoon ginger paste
• 1/2 teaspoon Sri Lankan roasted curry powder
• 1 tsp Sri Lankan raw/unroasted curry powder
• 1/3 teaspoon turmeric powder
• 1/2 teaspoon red chili powder
• 1 fresh pineapple, cut into bite-size chunks
• 1 1/2 teaspoon salt, or more to taste
• 2-3 green chillies
• 1 cup coconut milk
• Sugar, to taste (optional)