Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a bowl, combine flour, sugar, coffee granules, and baking powder.
Add eggs, butter, and vanilla. Mix until dough forms. Divide dough in half and shape into two logs.
Bake for 30 minutes until golden. Let cool for 10 minutes, then slice into 1/2-inch pieces.
Return slices to the baking sheet and bake for another 10 minutes until crisp.
For the mocha dip: Melt chocolate chips, espresso, and cream in a heatproof bowl over simmering water.
Dip biscotti in mocha dip and let cool on a wire rack.
Assemble your charcuterie board with meats, cheeses, nuts, and berries.
Serve the biscotti with the charcuterie for a sophisticated treat.