In a microwave safe dish, place the soy milk and butter into the microwave for 1 minute, or until the butter melts (this helps the potatoes stay warm by not adding cold ingredients). Add the warm mixture to the potatoes and blend on low until combined. Add salt and pepper and blend on medium-high for 30 seconds. Add more salt and pepper to taste or more soy milk if the potatoes are dry.
These mashed potatoes are rich and creamy thanks to the double mashing/blending. If you are looking for something extra special, try adding roasted garlic and parsley...yum! Enjoy!