I have always been a fan of the ubiquitous potato and leek soup. I thought I would try expanding on that idea a little, and adding in some greens. This soup is just delicious. When I think about grilling asparagus, I always serve it with a generous squeeze of lemon juice. Why should this soup be any different? I started making this soup without all the lemon, and found that it just didn’t have that extra pop. The lemon juice turned this soup from “so-so” to sublime.