4 medium sweet potatoes
1/2 cup unsalted butter, melted
3 tablespoons brown sugar
1 teaspoon ground cinnamon
1 teaspoon salt
Vegetable oil, for brushing the potatoes and the grill grates
# Cut sweet potatoes into 3/4-inch slices.
# Bring 3 quarts of water to a boil. Add salt and potatoes. Boil until potatoes are just starting to soften, about 8 to 10 minutes.
# Combine butter, brown sugar and cinnamon in a small bowl, set aside.
# Brush potatoes on both sides with vegetable oil and also oil the grill grates well. This creates a nice nonstick surface so the potatoes don't get stuck and fall apart.
# Place sweet potato slices on preheated grill over a medium-low heat and cook for about 10 to 15 minutes, turning a few times during cooking process. During the last 5 minutes, begin basting with butter-sugar mixture. Keep an eye on the potatoes as this both butter and sugar can cause flare-ups on the grill. So keep the lid open for this part of the cooking.
# When the sweet potatoes as soft through the middle and browned on the surface they are ready. Remove, brush once more with remaining butter mixture and serve.