The primary reason for toffee being too soft is that it is undercooked. Undercooking toffee doesn't mean cooking it for too short a time. Instead, undercooked toffee implies that the sugar didn't reach the required temperature or stage of cooking.
Get more content like this and the inside gist on all the fun things that happen at Healthsoothe straight to your inbox when you Subscribe to the Healthsoothe newsletter. Do it now!