Cut the sweet potato into 1 cm cubes. Soak in water and drain.
Put the sweet potatoes in a heatproof bowl, wrap with plastic wrap, and microwave until soft.
Add condensed milk and vanilla and mix.
Spread margarine on the bread, then top with the sweet potato mixture.
Sprinkle cinnamon and toast as usual in the toaster.
Story Behind this Recipe
I love sweet potatoes, so I made this sweet potato toast.
The salt in the margarine gives the flavor depth, so be sure to use it. The sweet potatoes will shrink a bit in the microwave, so don't cut too small. The listed weight of the sweet potatoes is the raw weight.