Pecan Sweet Potato Casserole - Oryana

Ingredients

• 3 pounds sweet potatoes or yams, peeled, cut into 1-inch cubes
• 6 tablespoons butter, melted
• 5 tablespoons maple syrup
• 1 teaspoon powdered ginger
• 1 teaspoon salt
• 1/8 teaspoon cayenne, or to taste
• 1 1/2 tablespoons arrowroot powder
• 1/2 cup pecans, chopped
• 6 tablespoons brown sugar
• 1/4 cup flour
• 4 tablespoons cold butter, cut into small cubes