01 -
Preheat your oven to 175°C (350°F). Line your baking sheets with parchment paper to prevent sticking and allow for even baking.
02 -
In a large bowl, use an electric mixer to cream the softened butter and brown sugar until light and fluffy.
03 -
Mix in the egg, dark rum, and vanilla extract until well combined.
04 -
In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add this dry mixture to the wet ingredients, mixing until just combined.
05 -
Gently fold in the toffee bits and chopped pecans, if using.
06 -
Drop tablespoon-sized portions of dough onto the prepared baking sheets, spacing them about 2 inches apart. Bake for 10–12 minutes, or until the edges are lightly browned. Let the cookies cool on wire racks.
07 -
In a mixing bowl, beat together the powdered sugar, butter, dark rum, and enough milk to achieve a smooth but thick consistency suitable for spreading or piping.
08 -
Once the cookies are completely cooled, frost them using a spatula or a piping bag for decoration.