For a richer flavor, try using homemade vegetable stock. Adjust the amount of red curry paste to suit your spice preference. A little goes a long way! If you don't have an immersion blender, a regular blender works just as well, but be sure to vent the lid to prevent pressure buildup when blending hot liquids. Garnish with a swirl of coconut cream or a sprinkle of chopped cilantro for an extra touch of elegance. Leftover soup can be stored in the refrigerator for up to 3 days. Reheat gently on the stovetop or in the microwave.