Providing something hot to eat is the hardest challenge, and although flasks of soup provide scope for spillage and mess, I feel they are worth the risk. This soup - my all-time most-requested- has the bonus, too, of being so simple to make, you can do it while you stumble about the kitchen at breakfast. While you can make it with pesto from a jar, the difference when you use the 'fresh' stuff in a tub that you find in chiller cabinets in the supermarkets is astonishing. I think soups taste better made in a blender rather than a processor, and it's best to use a blender which has a central bit in the top you can remove; this stops pressure building up, which in turn prevents you getting soup all over you or your walls. This would not be a good start to the day.

Ingredients

• 3 cups water
• 3 cups frozen peas
• 2 scallions
• 1 teaspoon Maldon salt or kosher salt
• 1/2 teaspoon lime juice
• 4 tablespoons (1/4 cup) fresh pesto (not jarred)

Directions