Easy chana masala

Name: Easy chana masala
Ingredients: 1 brown onion, diced; 2-inch piece ginger, sliced into matchsticks; 3 garlic cloves, diced; 1 teaspoon ground coriander; 1 teaspoon ground cumin; 1 teaspoon pink salt; 1/2-1/4 teaspoons ground chilli powder; 1/4 teaspoon ground turmeric; 2 tablespoons tomato paste; 4-5 large tomatoes, roughly chopped; 1/2 cup filtered water; 2 BPA-free tins of organic chickpeas; 1 tablespoon fenugreek seeds; 1 teaspoon garam masala; 1/2 teaspoon amchoor (dried mango powder - you can use lemon juice in place of this)