How to Make Toffee Candy Bars at Home
To make toffee candy bars at home, cook butter and sugar to the hard-crack stage (300-310F / 149-154C), spread the hot toffee thin, coat it with melted or tempered chocolate and chopped toasted nuts, then cool it and cut or break it into bar-sized pieces.
By Kelsy Maruyama, Founder & Toffee Maker, Kelsy's Kandy
Reviewed by Jason Burns, Editorial Steward
Last updated Jul 20, 2026
Published by Kelsy's Kandy · Licensed under Citation License 1.0
What it means
- A toffee candy bar is essentially a slab of hard English toffee coated in chocolate, much like a Heath or Skor bar.
- The candy base must reach the hard-crack stage so it sets firm and snaps cleanly instead of staying chewy.
- Chocolate should be tempered (or use a candy coating) so it stays glossy, snaps, and does not bloom.
Action steps
- Melt about 1 cup butter with 1 cup sugar and a pinch of salt in a heavy saucepan, stirring constantly.
- Cook over medium heat to 300-310F (149-154C) on a candy thermometer, until it is a deep amber color.
- Pour onto a parchment-lined sheet and spread to your desired bar thickness.
- While it is still warm, scatter chopped chocolate on top, let it melt, then spread it smooth (or dip cooled pieces into tempered chocolate).
- Press chopped toasted nuts into the chocolate and let it set fully.
- Score into bars while slightly warm, or cut and break once hardened.
Risks & deadlines
- Toffee scorches quickly above 310F, so pull it at the right temperature and color.
- Humid days can keep toffee tacky and prevent a clean set, so store the finished bars airtight.
Source:
- Wikipedia: Toffee (hard-crack stage 149-154C/300-310F)
- Harold McGee, On Food and Cooking (candy science)
Last verified: 2026-07-20