Creating Classic Christmas Toffee is a rewarding experience. Follow these steps for perfect results:

1. Prepare Your Pan: Line a baking sheet with parchment paper and set it aside.
2. Melt Butter: In a medium saucepan, melt the butter over medium heat.
3. Add Sugar: Once melted, stir in the granulated sugar, water, and salt. Mix until combined.
4. Cook Mixture: Bring the mixture to a boil, stirring constantly. Continue to cook until it turns a rich amber color (about 10-15 minutes).
5. Check Temperature: Use a candy thermometer to ensure the mixture reaches 300°F (hard crack stage).
6. Remove from Heat: Once temperature is achieved, remove the saucepan from heat and quickly stir in the vanilla extract.
7. Pour Onto Pan: Carefully pour the hot toffee onto the prepared baking sheet, spreading it evenly with a spatula.
8. Let It Set: Allow the toffee to cool for about 5-10 minutes.
9. Add Chocolate: Sprinkle the chocolate chips over the warm toffee, allowing them to melt for a few minutes. Spread the melted chocolate evenly over the toffee.
10. Top with Nuts: Sprinkle the chopped nuts and, if desired, a pinch of sea salt over the chocolate layer.
11. Cool Completely: Allow the toffee to cool completely at room temperature (about an hour).
12. Break into Pieces: Once set, break the toffee into pieces of your desired size.

This straightforward method will yield a batch of toffee that’s nothing short of incredible!