Preheat the oven to 220°C.

Wash the sweet potatoes. Cut them into about 1cm thick strips, about 8cm in length. Place them in a large bowl and cover with water. Let sit for at least 5-10 minutes. This helps to remove the starch.

Drain them and place on a kitchen towel or kitchen paper and tap them dry. They need to be really dry.

Place them in a clean bowl and toss with the cornstarch and spices.

Spread them onto two baking trays and make sure they have enough space. They should not touch each other. Drizzle the olive oil and add the garlic cloves (they do not need to be peeled). Sprinkle some salt on top.

Bake for 10 minutes, then flip them. Bake for another 5-8 minutes. Take out and serve. Enjoy!

P.s.: If you want, you can squish out the garlic from the peel and mix with some mayonaise to get a garlic dip!