• 1 box graham crackers
    [I’ve always used cinnamon grahams.]

  • 2 sticks salted butter
    [If using unsalted butter, add ½ teaspoon salt]

  • 1 cup brown sugar

  • 3 100-gram bars Toblerone® chocolate

  1. Unwrap the Toblerone bars and cut them into small pieces, aiming for under half an inch (you’ll be melting them shortly). Set aside.

  2. Preheat the oven to 350°F.

  3. Line a 10-inch by 15-inch baking sheet with aluminum foil.

  4. Line the entire bottom of the pan with graham crackers. Since the crackers vary considerably in their dimensions, even within the same brand, you’ll probably need to cut pieces to size to fit the entire pan. Sawing them gently with a good bread knife works for me.

  5. In a saucepan, bring the butter and brown sugar to a boil, stirring constantly. When it starts to bubble all over, keep boiling for three (3) minutes, still stirring. That’s it, no candy thermometer needed!

  6. Pour the hot toffee over the graham crackers, as evenly as practical, then bake in the oven for 10 minutes, by which time it should have spread out nicely.

  7. Remove from the oven and scatter the chocolate fragments over the toffee. They’ll soften after a few minutes. Spread the now almost-liquid chocolate over the toffee.


    The toffee is very hot and will blister your knuckles if you try to spread the chocolate with a flat spatula, like frosting a cake. This is why they make offset spatulas.

  8. Cool, then chill in the refrigerator.

  9. When cold and hard, carefully peel the foil away and then break the crack into irregular pieces.

  10. Store in a cool place or in the refrigerator.


I encountered chocolate crack in Joanne Fluke’s novel Apple Turnover Murder, one of a long series of cozy murder mysteries featuring Hannah Swensen, cookie baker and amateur detective in Lake Eden, a small town in Minnesota with a breathtakingly high murder rate. All the books are peppered with cookie recipes.

This recipe is essentially hers, except I reduced the toffee boil time from five minutes to three (less crunchy, more chewy) and replaced the chocolate chips with Toblerone.