Where can I find Baking powder in Sonceboz-Sombeval?

Baking powder can also be found in these cities:

Biel Bienne Brugg Delémont Grenchen Ipsach Le Landeron Lyss Moutier Münchenbuchsee Neuenstadt Nidau Saint-Imier Tavannes Tramelan

You can also find this in Sonceboz-Sombeval:

Vegetable Oil Prosecco Aquavit Confectionery Potato Specialties Salami And Permanent Sausage Milk Baking Ingredients Beer Jam