Complex sentence: The Baker sees Red Ridinghood in the woods and when the Witch appears, screaming at him to get the red cape, she frightens him so he forgets the ingredients he needs but his Wife, who followed him into the forest, reminds him.
Split into simpler sentences: The Baker sees Little Red in the woods and when the Witch appears, screaming at him to get the red cape, she frightens him so much he forgets the ingredients he needs. Luckily his Wife, who followed him into the forest, reminds him.