Ice Cream Pie with Butterscotch

This layered ice cream pie is the classic make-ahead dessert that solves entertaining: assemble it days in advance, freeze, and pull it out at serving time with a pan of warm butterscotch sauce. The graham cracker crust gets a half cup of finely chopped walnuts folded in for crunch, then bakes briefly to set firm enough to hold a slice of ice cream without crumbling.

The two-layer ice cream stacking is what gives this pie its showstopper appearance. Coffee ice cream goes down first, gets frozen until almost firm, then vanilla layers on top and freezes solid. The trick is the partial-freeze step in the middle. Vanilla ice cream spread directly onto soft coffee ice cream just blends into a beige swirl; freezing the coffee layer halfway gives a clean, distinct boundary between the two flavors.

The butterscotch sauce is the part most home cooks ruin by rushing. Brown sugar and butter cook over LOW heat for five to eight minutes, stirring constantly. Higher heat scorches the sugar fast and the sauce turns bitter. Half-and-half gets gradually stirred in off the heat, then a final minute of cooking thickens it to a glossy, pourable consistency. Pour warm over each cold pie slice for the dramatic temperature contrast that makes this dessert memorable.

Pro Tips

• Soften the ice cream just enough to spread, not melt. Liquid ice cream creates ice crystals when refrozen.
• Toast the walnuts on a dry skillet for 3 to 5 minutes before garnishing. Raw walnuts taste flat over the rich butterscotch.
• Make ahead up to a week. Wrap the pie tightly in plastic to prevent freezer burn and absorbed odors.
• Slice with a hot knife wiped between cuts for clean wedges through the layered ice cream.

Variations

• Swap coffee ice cream for chocolate or caramel for a different flavor combination.
• Use a chocolate cookie crust instead of graham for deeper flavor.
• Drizzle hot fudge along with the butterscotch for a double-sauce sundae pie.
• Top with crushed toffee bits for crunch contrast.