Butterscotch doesn’t shout like chocolate, but it lingers. This from-scratch cake leans on brown sugar, buttermilk, and homemade sauce for a tender, deeply flavored classic you’ll bake again.

3. Next whisk your eggs and cornstarch together. Then add in a cup of the hot butterscotch mix over the the eggs. This method is called introduction- it is introducing one mix which is hot into a cold ...