A Cast Iron Skillet Is Key To Achieving The Perfect Hard Toffee - Tasting Table
Briefly

For the best toffee, a cast iron skillet is ideal as it heats up well and distributes heat evenly when preheated correctly, preventing hot spots across the pan.
Recipes that call specifically for 'cast iron skillet toffee' don't differ much from regular toffee recipes; you can simply use your favorite recipe and swap the skillet to customize your toffee to your liking.
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