Chef Ida Rodriguez
To prepare leeks, remove root end and cut just below green stalk. Slit the remaining stalk from top to bottom.
Rinse off any soil. Slice leeks into 1/4-inch half moons, separate layers and rinse well in a colander.
To trim fennel, remove tops and trim root end. Rough chop and rinse well in a colander.
Melt butter in 4-6 quart pot. Add fennel, leek, and garlic. Place on medium heat, stirring occasionally, until vegetables are softened, about 15 minutes.
Add potatoes and stock, cover and simmer until vegetables are soft, about 40 minutes. Remove soup from stovetop. Allow to cool 20 minutes, then process in food processor fitted with metal blade.
Return soup to pot; add cream, lemon juice, and season with salt and pepper. Do not allow soup to boil or cream will curdle.
For an extra touch of flavor add a dash of hot sauce or balsamic vinegar.