Cut the soap into 1-inch cubes and place into a large microwave safe bowl and cover with cling wrap.

Heat the soap in your microwave for 45 seconds.

Stir the soap then heat again in 30 second increments until melted and smooth.

Stir in the vanilla fragrance oil and brown sugar.

Pour the soap into your moulds.

Lightly spray the soap with rubbing alcohol to eliminate any bubbles.

Allow soap to completely solidify and cool down, about 1 hour, before removing from the moulds.

Wrap in plastic wrap to store.