Combine Speculoos spices in a small bowl and mix until evenly distributed and set aside.
In a large separate mixing bowl, combine flour, salt, baking powder, and spice blend. Mix until all blended.
In another large mixing bowl,mix together the cannabutter, sugar, and brown sugar. Slowly mix in the egg.
Add in the flour mixture and combine until well mixed and dough forms.
Remove your dough from bowl and wrap with plastic wrap. Refrigerate for 4-6 hours.
On a floured surface, roll out the dough to a ⅛- to ¼-inch (3mm - 6mm) thickness.
Cut the dough into desired cookie shape.Optional: use speculoos style cookie molds to shape cookies.
Place cookies on parchment covered baking tray and bake at 350°F (175°C) for 12-14 minutes.