Add wine to apple mixture, then simmer, covered, until apples are tender, 6 to 8 minutes. Remove lid and briskly simmer until liquid is reduced by one third, about 2 minutes.
05While apples simmer, broil bratwurst 4 to 5 inches from heat until browned, about 6 minutes.
06Stir cream, vinegar, and brown sugar into apple mixture and briskly simmer until slightly thickened, about 2 minutes. Discard bay leaf and serve apple compote over bratwurst.