Grilled Spiced Sweet Potatoes - Feed Your Potential

Ingredients

• 2 1/2 lb sweet potatoes (peeled and sliced 1/2" crosswise)
• 1/4 tsp ground black pepper
• 2 tsp granulated sugar (extra fine)
• 1 tsp ground cinnamon
• 1/4 tsp ground nutmeg
• 1/4 tsp ground ginger
• 1 tsp dried thyme
• 3/4 tsp kosher salt