What’s up with this icing?
Cool isn’t it? A pre-made caramel combined with milk, butter and baking soda, then boiled to the soft ball stage. What the…?
The baking soda is the real curve ball here. What possible use is baking soda in a pot of boiling milk? Those who have ever made dulce de leche know the answer: it causes the milk to brown at a relatively low temperature. It’s an aesthetic thing in the context of this icing. It simply gives the mixture a nice tan color, which is important for the presentation of something called a “caramel” icing.
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