Shikha Singhs Sarson Ka Sag (Mustard Greens)

Ingredients

• 2 ts Ginger paste
• 2 ts Garlic paste
• 1 Green chilli seeded
• 1 lg Onion finely chopped
• 1 tb Sunflower oil or vegetable oil
• 25 g butter Chilled, cut into cubes
• 3 tb Sunflower oil or vegetable oil
• 1 ts Salt or to taste
• 450 g Fresh mustard or spring
• 250 g Fresh tomatoes skinned
• 1 ts Chilli powder
• 125 g Fresh spinach leaves finely chopped