Butter Cauliflower in Cream Sauce with Spices

Ingredients

• 2 Tbsp fresh lemon juice
• 2 tsp corn starch
• 1/2 tsp ground cumin
• 1 tsp ground turmeric, divided
• 3 tsp garam masala, divided
• 1 1/2 tsp salt, divided
• 2 Tbsp olive oil, divided
• 1 medium head of cauliflower, cut into florets
• 3 Tbsp unsalted butter
• 1 yellow onion, finely chopped
• 3 garlic cloves, minced
• 2 tsp freshly grated ginger (can substitute ground ginger)
• 2 Tbsp tomato paste
• 1 tsp paprika
• 1/4 tsp ground cinnamon
• Pinch cayenne pepper (optional)
• 1 8-oz can tomato sauce
• 2 cups vegetable broth
• 1/2 cup heavy cream (or full-fat canned coconut milk)
• Basmati rice, for serving
• Fresh cilantro, for garnish
• Whole-milk Greek yogurt, for garnish