Pea and Parsley Soup with Golden Caviar

INGREDIENTS

2 tbsp

unsalted butter

3 cups

coarsely chopped onion (from 1 large)

Coarse salt and freshly ground pepper

4 cups

chicken broth

2 cups

water

6 cups

shelled fresh English peas

4 cups

packed flat-leaf parsley leaves (from 2 bunches)

1/4 cup

creme fraiche, plus more for garnish

2 tbsp

fresh lemon juice (from 1 lemon)

Golden caviar, for garnish

Pea shoots (optional), for garnish