1 hour ago, JohnT said:@Anna N , out of interest, what do you pay for that 340g can? I go through quite a lot of baking soda (labled bicarbonate of soda here), as well as baking powder. Both are available in small cans in the supermarkets. However, I buy in 1 kg bags and pay aproximatly C$ 0.72 per kg for the soda and C$ 1.05 per kg for baking powder. Butter has doubled in price in the last 6 months from C$ 3.16 in December to C$ 6.32 for a 500g brick today!
I'm hoping someone else will jump in here. I bought that quite some time ago at Trader Joe's in the US and I don't get down there very often so I can't remember what I paid for it. Arm and Hammer baking soda at my local supermarket is $2.99 a kilo and Magic Baking Powder is $6.99 for 450g. I am absolutely certain I could get these cheaper if I shopped around. I only buy very small quantities of each of these so that they are fresh when I come to use them.
The cheapest butter at the same supermarket is $6.29 for 454 g. I try to wait for it to go on sale and then stock up.