1-1/2 lbs unpeeled summer squash (yellow, zucchini, scallopini)
4 tablespoons butter
1 cup onion, chopped
4 to 5 cloves garlic, very finely chopped
1/4 cup flour
3-1/2 cups low-sodium chicken broth
1/2 cup half-and-half, whole milk or light cream
1-1/2 tablespoons freshly squeezed lemon juice
1-1/2 to 3 tablespoons chopped fresh herbs (dill, basil, tarragon or parsley)
Salt and freshly ground black pepper
Note: Choose small to medium squash with tender skins and leave them unpeeled for both extra colour and nutritional value.
- Cut the squash into small (1/2-inch) cubes and set aside.
- Melt the butter in a large saucepan over medium heat. Add the onion and sauté until soft and translucent, 3 to 5 minutes. Add the garlic and cook until fragrant, 1-1/2 minutes longer.
- Add the flour, combine well and continue cooking, stirring often, until the flour is pale golden in colour, 3 to 4 minutes. Slowly whisk in the chicken broth and continue whisking until the mixture is smooth and well blended.
- Add the squash and season with salt and pepper. Cover and continue cooking, stirring occasionally, until the squash is tender, 12 to 15 minutes.
- Remove the soup from the heat and, using a hand-held immersion blender (or conventional blender), purée until smooth. Return the pan to the stove, stir in the half-and-half and lemon juice and heat through, 1 to 2 minutes.
- Taste and adjust the seasoning, add your choice of fresh herbs, ladle into serving bowls and top with a dollop of sour cream if desired.