Fifteen minutes ahead, turn slow cooker to high.

When slow cooker is hot, stir together nuts and butter. Sprinkle powdered sugar over the nuts in batches, stirring to blend and coat evenly. After cooking on high with lid on for another 15 minutes,reduce the heat to low and remove lid.

Cook, uncovered, stirring occasionally, for about 2 to 3 hours, or until the nuts are coated with a crisp glaze.

Transfer the nuts to a bowl.

In another small bowl, combine the spices; sift over the nuts, stirring to coat evenly.

Let cool before serving.