Creamy lemon chicken curry

Ingredients

• 2-3 tablespoons cooking oil
• 1 onion, cut into a dice
• 1 tablespoon of finely grated ginger
• 1 tablespoon grated fresh garlic
• 1 teaspoon red chili pepper flakes
• 1 teaspoon powdered cumin
• 1 teaspoon powdered coriander
• 1 teaspoon salt
• 1 large tomato, coarsely chopped
• 1 cup water
• 1 lemon
• 1-2 pods cardamom
• 1/2 cup heavy cream
• 1 green bell pepper, thinly sliced
• 1/2 cup of frozen green peas
• 1.5 cup cooked chicken, cut into small pieces
• 1-2 tablespoons chopped cilantro
• Lots of freshly ground black pepper