Dissolve coffee granules or instant espresso in boiling water. Cool to room temperature.
In large bowl cream brown sugar and butter; Add egg and mix until well blended. Stir in coffee and vanilla.
In a medium bowl stir together oats, flour, salt and baking soda. Stir flour mixture into creamed mixture then stir in toffee bits, chocolate chips and sugar cones.
Scoop up generous tablespoons of dough and place 2 inches apart onto 2 baking sheets lined with parchment paper.
Bake one sheet at a time on center rack for 12-15 minutes or until golden brown around edges. Cool 5 minutes on baking sheets then remove gently and transfer to racks to cool completely. (Cookies will firm up as they cool). Store lightly covered.