Pack up this sweet, salty, and caffeinated treat and gift it to everyone this holiday season.
Each layer of this decadent treat delivers a satisfying surprise.
Gift these toffee bars in glass jars, clear candy bags, or include them in a cookie box.
They’re sure to bring joy.
Spread pecans and walnuts on a large rimmed baking sheet and bake until golden, 7 to 10 minutes.
Spread crackers in a single layer in a 13-by-9-inch baking dish lined with parchment paper.
Break crackers as needed to cover entire baking dish.
Sprinkle nuts over crackers.
Place butter, sugar, and salt in a medium saucepan.
Cook over medium, stirring constantly, until sugar is dissolved and mixture is bubbly, about 5 minutes.
(Reduce heat as needed to prevent sputtering or burning.)
Remove from heat; stir in espresso and vanilla.
Immediately pour hot butter mixture over nuts and crackers in baking dish.
If needed, use a rubber spatula or small offset spatula to spread butter mixture to edges.
Bake until butter mixture is bubbling and darker around edges, about 10 minutes.
Cover with aluminum foil and let stand until chips are melty and spreadable, 8 to 10 minutes.
Sprinkle with flaky sea salt.
Refrigerate until topping is hardened and set, about 1 hour.
Remove from baking dish and slice or break into pieces.
Refrigerate in an airtight container for up to 2 days.
