Lemon-Blueberry Trifles

Prepare pudding mix in a medium bowl according to package directions using the 2 cups milk. Stir in sour cream, lemon peel, and lemon juice.

Spoon some of the pudding mixture into the bottoms of 4 parfait glasses. Top with half of the cake cubes and half of the berries. Add the remaining cake cubes. Spoon the remaining pudding mixture over the cake. Top with the remaining berries. Cover and chill until serving or up to 4 hours. If desired, garnish with lemon peel curls.