In a medium sized bowl, beat butter until soft, and then add confectioners' sugar until creamy and fluffy.

Then beat in egg yolk and Grand Marnier until well combined.

Slowly add almond meal, almonds and flour.

Cover with plastic wrap, and refrigerate for 1 hour or until firm.

Preheat oven to 450.

Using a tablespoon, scoop out dough and roll into balls (approximately 1 inch in diameter).

Allow to bake for approximately 12 - 15 minutes (or until lightly golden brown)

Allow to cool for 2 to 4 minutes before transferring to wire rack.

Once completely cooled, dust them with confectioners' sugar