Add 2 tablespoons of tropical oil (hard at room temperature) in a metal bowl and let it melt over a pan filled with hot water.
Fill a large bowl with some cold water and ice cubes.
Put 3 tablespoons of liquid vegetable oil and water in a small bowl and place this bowl directly on the ice water. Start stirring immediately or blend it using mixer.
Add the carrot juice and ¼ tsp mustard powder. Keep stirring until the mix starts to look creamier in appearance. Add 2 tablespoons of tropical oil to the mix and stir until the spread gets the right texture.
Add herbs as desired.
Allow it to set in your refrigerator and consume it within days.