THIS ARTICLE IS ADAPTED FROM THE FEBRUARY 17, 2024, EDITION OF GASTRO OBSCURA’S FAVORITE THINGS NEWSLETTER. YOU CAN SIGN UP HERE. In 2017, my wife’s grandmother pulled a dusty cookbook from her bookshelf and handed it to me with a sparkly-eyed grin. When I opened up The 1989 South Dakota Centennial Cookbook, I was in awe. Real politicians from South Dakota and beyond had offered up their homespun recipes for this publication, and almost all of them, from the state senators’ all the way to President Ronald Reagan’s, were absolutely…