At the 'highest estaminet (traditional Flemish restaurant) in Flanders', facing Cassel's hilltop windmill, you can quaff Flemish beer (including Kassels Bier, only available here), sip vin de chicorée (made with red wine and chicory) and dine on dishes such as carbonade (braised beef stewed with beer). For dessert, try the chicory crème brûlée. The tiny shop sells Flemish edibles.
Sit on the terrace in warm weather; when it's cooler, the cluttered interior strewn with pots, pans and bric-a-brac is a cosy place to hole up.