Slow-Cooker Mulled Wine

Combine wine, cider, brandy (or applejack), maple syrup, vinegar, orange zest and juice, allspice, cloves, star anise, cardamom and cinnamon sticks in a slow cooker or large pot. Cover and cook on Low in the slow cooker or on the lowest possible setting of the stovetop burner until hot, about 1 hour.

Strain the mulled wine through a fine-mesh sieve; discard solids. Serve warm, garnished with orange slices and cinnamon sticks, if desired.