A classic mashed potato recipe blends milk and butter with potatoes ... A blend of heavy cream and buttermilk, Mexican crema strikes a balance between the tartness of sour cream and the rich dairy ...

Simply use vegetable broth and a plant-based alternative to Mexican crema, such as cashew cream or a dairy-free sour cream ..

Season with salt to taste and set aside. Make avocado crema: Slice remaining scallions and add to blender with mayonnaise, sour cream, peeled avocado, remaining cilantro, jalapeño and garlic.