German pronunciation is relatively straightforward, although spelling is somewhat more involved.
Vowels
a
like ‘u’ in “cup”, ‘a’ in “target”
e
like ‘e’ in “ten”, ‘a’ in “bake”
i
like ‘i’ in “bingo”
o
like ‘oo’ in “door”, like ‘o’ in “mole”
u
like ‘ou’ in “you” [...]