French Potato and Leek Soup

Full recipe — serves 2
Less left over? Make half with half the saved food and half the added ingredients.
AI-generated leftover idea inspired by Mary’s original recipe. This variation has not been tested by Mary.
Ingredients
- 2 cups cooked Fondant Scalloped Potatoes with their cheese sauce and fried-onion topping leftover Fondant Scalloped Potatoes
- 1 medium leek, white and pale-green parts only, washed well and thinly sliced
- 1 tablespoon unsalted butter
- Salt and white pepper to taste, only if needed
- 1½ cups unsalted vegetable broth, plus up to ½ cup more to thin
Directions
- Melt1 tablespoon unsalted butter in a medium saucepan over medium-low heat. Add the cleaned sliced leek and cook gently8–10 minutes until soft, without browning.
- Add2 cups chopped cooked Fondant Scalloped Potatoes and all their accompanying cheese sauce and fried-onion topping. Add1½ cups unsalted vegetable broth. Bring to a gentle simmer and cook8–10 minutes until the leek and potato are very soft; avoid a rolling boil.
- Remove from heat. Use an immersion blender briefly until creamy and mostly smooth; do not overblend into a gluey texture. Add up to½ cup more broth as needed for a pourable soup.
- Return to gentle heat, stirring, and reheat to165°F throughout, checking with a food thermometer. Taste before adding salt or white pepper because the original is seasoned. Divide between two bowls and serve hot. Refrigerate promptly in shallow covered containers; use within the original potatoes’3–4-day refrigerated storage window, which does not restart when made into soup.