Pour 2 tablespoons of oil into a pan over medium heat.
Add 1 teaspoon of cumin seeds and let them splutter.
Add 1 medium onion, 1 inch of grated ginger, and 2 cloves of minced garlic; sauté until onions turn translucent, about 3-4 minutes.
Toss in 2 medium diced potatoes and sauté for a few minutes until they start to soften.
Stir in 1 teaspoon each of turmeric powder, coriander powder, red chili powder, and salt; mix well.
Add 2 cups of green peas and 1 cup of water; cover and cook until potatoes are tender, about 15 minutes.
Sprinkle in 1 teaspoon of garam masala and gently mix everything together before serving.
Garnish with 2 tablespoons of freshly chopped coriander.