Soak the sticky rice in water for at least 4 hours or overnight.
Drain the rice and rinse it well.
Place the rice in a steamer basket and steam for 30 minutes or until tender.
While the rice is steaming, prepare the coconut sauce by combining coconut milk, sugar, and salt in a saucepan. Heat over low heat until the sugar is dissolved.
Once the rice is cooked, transfer it to a bowl and pour the coconut sauce over it. Mix well to coat the rice with the sauce.
Cover the bowl and let the rice rest for 10 minutes to absorb the flavors.
Peel and slice the mangoes.
Serve the sticky rice with the sliced mangoes on top. Garnish with sesame seeds and mint leaves.
Enjoy!