Saag Paneer Minus the Paneer

Ingredients

• 2 to 3 cups (170 to 255 g) frozen or 4 to 6 cups (106 to 160 g) fresh spinach
• A little water — about 2 Tbsp for fresh spinach; for frozen, no water necessary
• 1 (14-oz / 396-g) package firm tofu
• Salt
• 1/2 tsp ground cumin, divided
• 3 Tbsp (45 ml) avocado oil, divided
• 1/2 large red onion
• 4 garlic cloves
• 1-inch (2.5 cm) knob of ginger
• 1½ tsp cumin seeds
• Pinch of nigella seeds
• 1/2 tsp turmeric
• 1½ tsp ground coriander
• 1/4 tsp cayenne
• Pinch of hing (asafoetida)
• 1 cup (240 ml) tomato puree
• Fresh cilantro, for serving
• Pinch of garam masala, for serving
• Pinch of cayenne, for serving