1 garlic clove, minced
1 medium sweet onion, chopped
1 medium leek, cleaned, white part chopped
2 Granny Smith apples, peeled, cored, chopped
3/4 lb (350 g) sweet potatoes, peeled, sliced
1/4 lb (125 g) parsnips, peeled, sliced
4 cups (1 L) low-sodium chicken broth
2 cups (500 mL) evaporated skim milk
1 tsp (5 mL) fresh lemon juice
1/2 tsp (2 mL) lemon zest
Sea salt and freshly ground white pepper, to taste