Spinach tomato and tofu curry

Name: Spinach tomato and tofu curry
Cook time: 45 min
Total time: 45 min
Cuisine: Asian, Indian
Ingredients: 500 g spinach leaves; 40 g vegan butter; 2 teaspoons cumin seeds; 1 red chili (deseeded and finely chopped); 1 onion (very finely chopped); 2 plum tomatoes (finely chopped); 2 teaspoons finely grated garlic; 1 tablespoon peeled and finely grated fresh root ginger; 1 teaspoon chilli powder; 1 teaspoon ground coriander; 500 g pressed firm tofu (cut into bite-sized pieces); 2 tablespoons plant-based single cream; 1 teaspoon lemon juice; 2 tablespoons finely chopped fresh coriander leaves; Salt and pepper; 160 g brown rice (cooked, to serve)