Step 1Combine the ratatouille, stock, Pernod and vinegar together in a blender. Blend the ingredients at high speed until the mixture is very smooth and creamy. Strain the soup through a fine mesh sieve such as a chinois for the most refined texture.
Step 2Season the soup well with salt and pepper. Garnish the soup with croutons, chopped olives, a drizzle of pesto or a dollop of crème fraîche. This soup is also good served hot.