Peel and dice the potatoes into uniform pieces.

Place the diced potatoes in a large pot and cover with water. Bring to a boil and cook until tender, about 15-20 minutes.

In a skillet, melt the butter over medium heat. Stir in the flour and cook for 1-2 minutes until lightly golden.

Gradually whisk in the milk, stirring constantly until the mixture thickens, about 5-7 minutes.

Add the garlic powder, onion powder, salt, and pepper. Stir in the cheddar cheese until melted and smooth.

Drain the cooked potatoes and return them to the pot. Pour the cheese sauce over the potatoes and gently stir to combine.

Serve hot, garnished with additional cheese or herbs if desired.