These buttery, crumbly shortbread cookies are elevated with rich espresso and dark chocolate, creating a sophisticated treat that’s perfect for any occasion. They’re not too sweet, not too bitter, with a texture that melts in your mouth.
Chill the dough thoroughly for at least 2 hours to prevent spreading. Use instant espresso powder, not regular coffee granules. For best flavor, bake a day ahead as flavors meld overnight. If dough cracks when slicing, let it sit at room temperature for 5-10 minutes.
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