oh i know! my metric spoons are 5ml for teaspoon and 15ml for a tablespoon (it's printed right on my spoons). i even have an even smaller spoon that's just 1ml, though i've never used it.
tbh, the difference is small enough that it doesn't matter. same with cups - like, i know that 1 cup is not the same as 250ml, but the difference is really, really, tiny, and it's not going to make a difference so long as i just use the same scale throughout the entire recipe. so if i'm reading an american recipe and it calls for 1 cup of milk or whatever, i'll just automatically translate that to 250ml and go from there.
this choux pastry recipe is from my mum, who got it from who knows where, and then i modified it to be gluten free. the recipe she has on her card has two sets of measurements, the one i used here and then one that has everything in cups. however, the cups in her recipe is not a US cup or a UK cup - it's a coffee mug. (in icelandic cup/mug is the same word, and her recipe was written down in the late 80s, in icelandic.) it's a very specific mug too, and i have no idea how many ml it is because i never tested it (ca 200ml is my best guess), but also it doesn't matter because she uses the same mug for everything, so the measurements are never off. (so if i wanted to use the cups version of the recipe, i'd just grab a mug from my cupboard and use that, and adjust the number of eggs when i get to that step.)
Re: "never tell me the odds"
tbh, the difference is small enough that it doesn't matter. same with cups - like, i know that 1 cup is not the same as 250ml, but the difference is really, really, tiny, and it's not going to make a difference so long as i just use the same scale throughout the entire recipe. so if i'm reading an american recipe and it calls for 1 cup of milk or whatever, i'll just automatically translate that to 250ml and go from there.
this choux pastry recipe is from my mum, who got it from who knows where, and then i modified it to be gluten free. the recipe she has on her card has two sets of measurements, the one i used here and then one that has everything in cups. however, the cups in her recipe is not a US cup or a UK cup - it's a coffee mug. (in icelandic cup/mug is the same word, and her recipe was written down in the late 80s, in icelandic.) it's a very specific mug too, and i have no idea how many ml it is because i never tested it (ca 200ml is my best guess), but also it doesn't matter because she uses the same mug for everything, so the measurements are never off. (so if i wanted to use the cups version of the recipe, i'd just grab a mug from my cupboard and use that, and adjust the number of eggs when i get to that step.)