Recipe for Blue Foam and Spider

Peel the potatoes and wash them. Cook them in salted water, starting with cold water, for 20 minutes. Once cooked, drain them, return them to the pot, and moisten with cream and milk. Season with fine salt and white pepper.

In a hot pan, cook the butter until brown, then pour it over the potatoes. Bring the mixture to a boil and let it simmer for 10 minutes.

Blend everything until smooth. Pour the mixture into a siphon, seal it tightly, and charge it with gas (2 cartridges). Shake the siphon well and keep it in a water bath.

Zest the lemon, add it to the crab meat in small glasses, arrange the crab, drizzle with olive oil, and generously cover with the espuma.

To finish, enjoy immediately!