Put roast in slow cooker. Combine soup mix, beef broth, Tassel Ridge Iowa Nouveau, water, sugar, and garlic powder in 2-quart measuring cup or bowl. Pour over roast. Cook on low for 8 to 10 hours. Remove roast. Strain cooking liquid through cheesecloth or fine-mesh strainer to make au jus for dipping. Set aside. Shred meat. If desired, spread Tassel Ridge® Horseradish Aioli on bread or buns. Top with shredded meat. Serve with au jus. Makes 16–24 sandwiches.