1. Fill a large, deep soup/stock pot halfway up with water, and add potatoes to the pot. Bring to a boil over high heat until tender, about 10 minutes, give or take.
2. While the potatoes are boiling, place the margarine in a large mixing bowl. When the potatoes are done, drain them, reserving 1/4 cup of the boiling water to mix with the bouillon. Place the potatoes on top of the margarine in the bowl and mash with a potato masher.
3. Blend with an electric hand mixer, slowly adding the milk and broth as you mix. Stop and scrape down the bowl.
4. Add the spices and salt and pepper and mix on high for 1-2 minutes, until nice and fluffy.
If they need to be warmed up, just make sure your bowl is oven-safe and pop them in a 350 degree F oven for a few minutes.
Source of recipe: This is my vegan version of the mashed potatoes I grew up on. My mom always put mayonnaise and real milk in hers and she didn't do the dill. This version is so good and much healthier.