Aloo-Gobhi with ginger and green coriander

Ingredients
1 large head cauliflower cleaned and chopped into small florets
3 medium potatoes peeled and chopped small
A large piece of ginger (6 cm x 2 cm) peeled and chopped
2 tablespoons oil
2 fresh green chillies chopped
1 cup fresh green coriander
1 teaspoon ground cumin
2 teaspoon ground coriander powder
1/2 teaspoon garam masala
salt to taste
1 tablespoon lemon juice

Method
Blend the ginger to a fine paste.
Heat oil, add ginger and turmeric. Fry, stirring constantly.
After 2 minutes add chopped green chillies, potatoes and cauliflower. Stir.
Add cumin, coriander, garam masala powders and salt. Cover and cook. Add a little warm water to prevent sticking.
Add fresh green coriander and lemon juice and stir when almost done.