If you're making something that doesn't require a lot of rise or structure, like cookies or muffins, plain flour can be a decent substitute. It's like using a different type of etchup - it's not the same, but it'll still taste pretty good. However, if you're making something like bread or croissants, you're better off sticking with all-purpose flour or bread flour.
Another thing to keep in mind is the regionality of flour types. In some parts of the world, plain flour is the default type of flour, while in others, all-purpose flour is the norm. It's like the difference between soda and pop - it's all about the regional dialect, baby!
Is All Purpose Flour Plain Flour? - Kitchen Serf
So, to sum it up: while plain flour can be used as a substitute for all-purpose flour in some cases, it's not always a 1:1 swap. It's like trying to put a square peg in a round hole - it might fit, but it won't be perfect. But hey, if you're in a pinch and only have plain flour on hand, go for it - just be aware of the potential differences in your final product.
In the end, it's all about experimentation and fun. Don't be afraid to try new types of flour and see how they affect your baked goods. And if you're feeling really adventurous, you could even try making your own flour blends - it's like creating your own secret recipe!
So, the next time you're baking and you realize you're out of all-purpose flour, don't panic - just grab that plain flour and see what happens. It's like taking a culinary road trip - you never know what delicious detours you might discover along the way!