The themed ingredients for Iron Cupcake San Francisco's monthly challenges can often be, well, challenging, but tonight's mint battle boasts refreshing simplicity. Organizers encourage creativity as always, but this time have urged, "please, no toothpaste!"
Cupcakery begins at 7 p.m. at Leland Tea Company
(1416 Bush at Polk). Five dollars admission lands you a house tea and copious tasting opportunities.