Testing - Lovage, lettuce, pea and cucumber soup

https://www.theguardian.com/lifeandstyle/2011/jun/24/lovage-recipes-hugh-fearnley-whittingstall

1-This was visually gorgeous but just fine in terms of flavour. I suspect the cucumber should not simmer...

20g 1 - 2 Tbsps butter
1 onion, finely diced
1 tsp fresh thyme leaves, chopped
Salt and freshly ground black pepper
A few young lovage stalks, chopped
700ml 3 cups chicken or vegetable stock
2 little gem lettuces, finely shredded
100g 1/2 cup peas
½ cucumber, cut into 5mm dice
1 small handful lovage leaves, shredded
A few tablespoons of crème fraîche or thick yoghurt or a swirl of cream, to finish

1. Warm the butter in a large saucepan over a medium-low heat. 
2. Add the onion, thyme and a pinch of salt, and sauté until the onion is soft and translucent, about 10 minutes. 
3. Add the lovage stalks and sauté for a couple of minutes. Pour in the stock and peas and simmer for 10 minutes. 
4. Add the rest of the veg lettuce (keep back some lovage leaves to garnish) and simmer for five minutes. Remove from heat and add the cucumber and serve immediately.
5. Season and serve with dollops of crème fraîche and a scattering of fresh lovage leaves.