Drain the rice. Line the steamer basket accessory for the InstantPot with a cheesecloth or a white cotton towel. This will keep the rice in one place. Place the steamer basket on top of the steaming rack inside of your InstantPot. Add 1 -2 cups of water to the InstantPot, making sure that the water does not reach the rice. There should be about 1 cm of space between the water and rice.
Pressure cook on high for 12 minutes and set to natural release for 12 minutes.
Add the coconut milk, sugar, and salt to a saucepan and combine over medium heat until the sugar is completely dissolved. Keep this mixture warm until the rice is ready.
Remove the rice from the InstantPot. Some of the grains will get stuck to the cheesecloth so take some time to remove as much as you can.
Transfer the cooked rice into a medium sized bowl and add the coconut mixture on top, making sure that the rice is evenly coated. Let it sit for 20 minutes. After 20 minutes, use a rubber spatula to break apart the lumps of rice, and turn the mixture to evenly coat the rice again. Set aside for another 20 minutes before assembling.
Coconut Sauce
Combine the rice flour (or cornstarch) with the water and stir until no longer lump.
Add the flour mixture to the coconut milk and salt in a small saucepan and thicken over medium heat. Taste test to ensure the salt level is at your preference. ¼
Allow the mixture to cool before serving.
Assembly
Add a few heaping spoonfuls of the sticky rice to your serving dish. You can shape into a square or smooth off the top so it is round.
Arrange your sliced or diced mangoes around the rice. Have some fun getting creative here!
Pour a few spoonfuls of coconut sauce over top. Garnish with lime zest, a sprig of mint, and toasted coconut. Enjoy!
Notes
This recipe works best using full fat coconut milk from a can. Do not use boxed coconut milk as this will not have enough fat.
We recommend soaking the rice for at least 1 hour. If you have the time, you can soak up to 4 hours.
Some people may prefer a saltier coconut sauce. I found that a quarter teaspoon was far too salty for us, so I reduced to an eighth.
This recipe calls for Thai glutinous rice which can be found at your local Asian market.