Peel and slice the Sweet Potato (1 kilogram) and put them into a bowl.
Add the Olive Oil (2 teaspoon), Garlic (3 clove) and Crushed Red Pepper Flakes (1 teaspoon).
Use two spoons to toss the potatoes and mix the ingredients.
Arrange the sweet potato pieces into a casserole dish lightly greased with cooking spray.
Drizzle the Whipping Cream (300 milliliter) over all of the sweet potato pieces.
Preheat the oven to 375 degrees F (190 degrees C).
Put the sweet potatoes in the oven for about an hour or until the sweet potatoes are nice and tender.