This melt-in-your-mouth classic English Butter Toffee is rich, smooth, buttery, and snappy. This post contains ALL the tips for novice (and experienced) toffee-makers!
If you're a novice toffee maker, don't add the nuts while cooking. It risks lowering the temperature too drastically, which can cause splitting. Rather, add the nuts after cooking. Alternatively, you can sprinkle them on the parchment paper, then pour the hot toffee on top.
Never dip your fingers into the hot toffee or taste it without cooling it on a spoon.
If the mixture begins to separate (where the butter is leaking out), remove from heat, add a tiny bit of water, and stir vigorously for a few minutes.
If you prefer a sticky, tacky, or chewy toffee, only heat to a maximum of 290-295°F (145°C).