While the potatoes cool, add all remaining ingredients—except the chives—to a mixing bowl. This includes the lemon juice, tahini or vegan butter, non-dairy milk, and all the spices.
1 tablespoon lemon juice, 1 tablespoon tahini or vegan butter, 1 tablespoon non-dairy milk, 1 teaspoon black salt, 1/4 teaspoon black pepper, 1 teaspoon onion powder, 1 teaspoon garlic powder, 1/4 teaspoon paprika, 1/4 teaspoon turmeric