Go to any supermarket in France and buy flour for instance: you'll find type T45, T55, T65, T80, T110, T150 [1]. And professional pastry recipes will tell you exactly what type of flour in what quantities. In the U.S. you will only find "All Purpose flour". I know French pasty chef in the U.S. who struggles to find the right ingredients. Since people care about getting T45 or T65, the producers create them at scale accordingly, and so it's possible to find a specific flour for the same price of "All purpose flour" in the U.S.
[1] http://www.wessexmill.co.uk/acatalog/Flour-Types-T55-T45-Typ...
EU has much more strict policies, limits on pesticide use, no GMO rule, plus specific laws to protect traditional (sometimes centuries old) product recipies from being faked by inustrial-scale producers, replacing natural ingredients with chemicals.
That's why food generaly tastes much better in Europe.
Neither impact flavor.
> replacing natural ingredients with chemicals
You do realize that "natural ingredients" are chemicals too right? Everything is made up of chemicals.
How is natural vanillin any better than synthetic vanillin? Matter is matter. Organic molecules are identical whether a plant produced them or a chemist.
Vanilin itself is a good example of the exact same molecules, but for instance I remember on chemistry class discussing banana flavor extract: it tastes "like banana" but it's not actually the same chemical component. Making a cake with that chemical and labeling it banana bread could be done and probably won't taste the same.
But that's not where most bakers get their flour, most will get it from someone who specializes in delivering baking goods who will have a larger selection.
I think those specialized deliverers are more rare in the U.S., and so the baker either has to pay for more expensive raw ingredients, or use lower quality.
True, but I can still make far superior chocolate-chip cookies (an American staple pastry) at home, for cheap, than I've ever had from 90% of stores and bakeries.
Try out the following recipe with the addition of half a lemon's juice, switching out all the sugar for brown sugar. You can either use the full load of chocolate chips, or substitute dark chocolate, or do like I do and half the chocolates so you can enjoy the cookie.
http://allrecipes.com/recipe/10813/best-chocolate-chip-cooki...
(Mind, I might be an edge-case, since I've practiced baking since I was five years old.)
In any case lots of times, after you get to know the recipe, you just eyeball the proportions. No need to be super precise in most instances. We're not making alloys.
A pastry out of the oven is delicious. Which is why pastry made in house taste better than the hours old stuff you get at chain coffee shops.