Having no idea how to prepare white asparagus or what to do with it, I did some research. First off, I saw you have to peel it. Whaaaa? Peel asparagus? If you need help you can watch this German go mad on the asparagus. That's what I did. Then I found this delicious recipe on Food and Wine, which is what you should do, too.
White Asparagus Ham Roll Ups
Not really adapted, straight from Food & Wine
2 pounds white (or green) asparagus
8 c water
3 T unsalted butter
3 T flour
1 c reserved asparagus liquid
dash of nutmeg
salt & pepper
6 slices of good ham from deli
1 c shredded gruyere
Preheat oven to 350 F (176 C). Peel the asparagus as the German in the video. Fill a large pot with 8 c water, asparagus peels and stems, some salt. Once water is brought to a boil, add the asparagus (bundled into 6, if you like). Cook on high for about 10 minutes. Remove asparagus and set onto a towel. Pat dry. Strain 1 1/2 cup of the asparagus liquid. Reserve.
Melt butter in a small sauce pan, whisk in the flour. Then add the reserved liquid, whisking constantly until sauce thickens. About 5 minutes over medium heat.
Wrap asparagus in ham slices. Set in shallow lightly buttered baking dish. Top with sauce and cheese. Bake for 25 minutes, until hot and bubbly. Serve immediately.
Note: I made a half batch, which is what is pictured. Following the recipe will make 6 bunches of Asparagus Ham roll ups.