Making Classic Christmas Toffee is straightforward when you follow these steps:

1. Prepare the Baking Sheet: 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. Combine Ingredients: Add the sugar, water, and salt to the melted butter. Stir well to combine.
4. Cook Mixture: Bring the mixture to a boil, stirring frequently. Cook until the mixture reaches a golden brown color. This usually takes about 10-15 minutes.
5. Add Vanilla: Once the mixture turns a rich amber color, remove it from the heat and add the vanilla, stirring swiftly to incorporate.
6. Spread Mixture: Immediately pour the hot toffee mixture onto the prepared baking sheet. Spread it evenly with a spatula.
7. Cool Slightly: Allow the toffee to cool for about 5 minutes.
8. Add Chocolate Chips: Sprinkle the chocolate chips over the toffee while it’s still warm. Let them sit for a few minutes to soften.
9. Spread the Chocolate: Once the chocolate chips have melted, spread the chocolate evenly over the surface of the toffee with a spatula.
10. Top with Nuts: Sprinkle the chopped nuts evenly over the melted chocolate, pressing them down gently.
11. Cool Completely: Let the toffee cool at room temperature until fully set, which may take around 15-20 minutes.
12. Break into Pieces: Once hardened, break the toffee into pieces or cut it into squares for serving.

These steps will ensure that you create amazing Classic Christmas Toffee every time!