• Preheat oven to 300 degrees. 

For the Cookie Dough:

• To a large mixing bowl, add butter, sugar, instant coffee granules, salt and vanilla. 
• Beat with a mixer until creamy.
• To the butter mixture, slowly beat in the flour a little at a time.  
• To the bowl, add toffee bits.  With a sturdy spoon, stir the toffee bits into the dough. Set aside.

For the Cookie Dough Coating:

• For the Macadamia Nuts - to a small bowl, add the chopped macadamia nuts.
• Drop the cookie dough by the teaspoonful into the bowl of chopped macadamia nuts, and roll to coat the dough shaping it into a ball. 
• Place the balls of cookie dough onto an ungreased cookie sheet leaving even, empty spaces in between each dough ball.
• With the back of a spoon, flatten each ball of dough just a little and add a sprinkle of sugar on the top of the flattened cookie dough.
• In a preheated oven, bake the cookies slowly just until the edges are very lightly browned (about 20 to 25 minutes). 
• Remove the cookies from the oven and transfer them onto a cooling rack.  Let cool.
• Serve by themselves or as an ice cream sandwich with coffee ice cream in between two cookies.