Step 1

Toss sweet potatoes with cornstarch in a resealable plastic bag until evenly coated.

Step 2

Place coated sweet potatoes in a multi-functional pressure cooker (such as Instant Pot®). Cover with maple syrup, white sugar, brown sugar, and margarine. Pour in water and stir. Close and lock the lid.

Step 3

Select high pressure according to manufacturer's instructions; set timer for 4 minutes. Allow 10 to 15 minutes for pressure to build.

Step 4

Release pressure carefully using the quick-release method according to manufacturer's instructions, about 5 minutes. Unlock and remove the lid.