Charred pear, celery & walnut salad with tarragon pesto

Ingredients

• 2 (300g) stalks celery, trimmed
• 4 small_piece (400g) corella pears, sliced thinly lengthways
• 1 small_piece (150g) red capsicum (bell pepper), chopped finely
• 1 cup fresh celery leaves, firmly packed
• 1/2 cup (50g) walnuts, roasted, chopped coarsely
• Tarragon pesto
• 1 cup fresh tarragon leaves, firmly packed
• 2 slices (90g) white bread, crusts removed
• 1/4 cup (60ml) milk
• 1/4 cup (60ml) water
• 2 tablespoons olive oil
• 1 teaspoon sea salt