This rich, buttery icing recipe is designed to complement a light and airy Angel Coconut Cake. Using a combination of light brown sugar, milk, and butter (or oleo), the icing is boiled to thicken slightly and create a luscious caramel-style glaze. Once cooled to lukewarm, it can be poured or spread over the cake to soak in gently, giving the finished dessert a melt-in-your-mouth sweetness. Beloved for its simplicity and nostalgic flavor, this icing reflects a classic mid-century approach to topping light sponge cakes without overwhelming their texture.