INGREDIENTS
1 cup
butter
1/2 cup
brown sugar
2 1/4 cups
flour
1/2 cup
finely chopped walnuts, divided
1 tsp
instant espresso powder (or regular instant coffee)
1/2 tsp
salt (omit if using salted butter)
1 cup
dark chocolate chips, plus extra for chocolate drizzle
3
TB. butter