Roast potatoes, leeks, and garlic with olive oil, kosher salt, black pepper, and thyme.
In a pot, melt butter and sauté diced shallot.
Deglaze with white wine.
Add chicken or vegetable stock, bay leaf, heavy cream, and Dijon mustard.
Simmer until flavors meld.
Remove bay leaf.
Fry thinly sliced shallot in neutral oil until crispy, then drain and season with salt.
Blend soup until smooth.
Season with kosher salt and white pepper to taste.
Serve soup topped with crispy fried shallots, chives, extra virgin olive oil, flaky sea salt, and cracked black pepper.
