Presently, Wagner's has positively no branding. They also have no website; only a fairly minimal Facebook page. The label on the syrup has very poor design all around, with no real color scheme, tagline, conscious type choices, etc. The only reason I even know this brand exists is because I work at a grocery store. I assume Wagner's distributes to Wisconsin and the surrounding area, as they're a local, fairly small company.
Creative Mood Board
I'm thinking the logo will be more type-based, rather than graphic or geometric.
"Sweet Wisconsin Heritage" "Sticky, Sweet Heritage." "Sticky. Sweet. Heritage." Something else (?)