Prep Time 15 minutes mins
Cook Time 20 minutes mins
Total Time 35 minutes mins
Hot knife trick is non-negotiable for clean cuts: run the knife under hot water, dry it, and slice. Wipe clean between cuts. Do not over-swirl the caramel – just two passes. Taste your caramel before adding; if too sweet, add a pinch of flaky salt. Freeze bars for at least 6 hours; they keep for up to a month tightly wrapped. For a shortcut, skip the skillet step and press raw pretzels and toffee bits on top before freezing.