The secret may be well and truly out for Mahjong Bar, the hidden watering hole lurking behind a pink snack bar on Dundas West – but the bar's growing popularity won't stop us heading there for libations and Chinese small plates. This week, we have another reason to visit. In addition to the Umeboshi Soda (grapefruit, salted plum and Topo Chico Soda), Tropic Thunder (coconut soaked rum, pandan, lime and pineapple) and other cocktails on the menu, they'll be shaking up Negronis in the dimly lit speakeasy.