A lot of people have trouble making N. American recipes with German flour.
DING DING DING!!! We have a winner!
Try using a mix of 2 parts of Type 405 flour to 1-2 parts of Type 550. For denser baked goods (like breads) you may want to reverse that ratio and then some (for dense bagels I use 1 part 405 to 6 parts 550).
I did figure out that American butter contains a required 80% butterfat but European Butter contains upwards of 86%
BZZT!
American butter is
at least 80% butterfat; European has a
maximum of 86%. The difference is minor -- about 5%.
Most American baking recipes assume large to extra-large eggs
More sound advice. You'll need almost three eggs here to substitute for 2 large/extra-large American eggs; you may have to leave out a tablespoon of milk/water.
How on earth did this cups business start?
People in the UK couldn't afford kitchen scales before they scarpered across the pond. Seriously. The kitchen scale hasn't been around very long. Look at any cookbook over 100 years old and you'll see that anything to be actually measured was in relation to the volumes of other ingredients, so the "cup" could be any damned thing; the measurements are all relative. The US standardised things in the early 20th century and it stuck. Changing over the country to metric has been tried and it's simply unfeasible.
For baking volume measurement is infinitely preferable to using weight. Ditto for making roux.
woof.