I like the creamy texture new potatoes, Yukon golds, and yellow finns lend here, but good russet potatoes yield light, fluffy, beautiful mashed potatoes and are delicious as well. You can easily make these vegan by substituting olive oil for the butter, and your favorite non-dairy milk. Also, don't be thrown off by the saffron, you can leave it out if you don't have any. Enjoy!
Melt 6 tablespoons of the butter gently in a small saucepan over medium-low heat. Stir in the garlic, and allow to steep there over low heat for 5-10 minutes. Remove from heat. You can either leave the garlic bits in, or strain them out. Either way, at this point, stir in the saffron (if using), and a pinch of salt, and set aside.