This is so cool we don’t know why it took till now for someone to think of it, but it’s just in time for grilling season. Beginning April 1— always a problematic day for announcements, but this is legit— Chef Scott Walton of Markethouse, a farm to table restaurant in Streeterville, will offer made-to-order sausages for your backyard barbecue, made from the sustainable meats from Slagel and other local farms that they get in house. You pick the ingredients you want from their menu and give them 48 hours’ notice, and Markethouse will make you a batch of sausages that meet your specs for grilling. (You can also choose from several standard recipes they serve in the restaurant.) While you’re picking yours up, you can also lay in other supplies like pork or lamb belly bacon, country pates, a variety of housemade mustards in interesting flavors such as apple cider and violet, and more. Watch for the menu April 1 at the Markethouse site.