Gastronaut: Simple Syrup, Xanthan Syrup, Creole Old-Fashioned

To give a luxurious silky texture to cocktails, this simple syrup (a syrup made by dissolving sugar in water) is thickened slightly with xanthan gum.

This variation on a classic old-fashioned calls for Cognac and dark rum in place of whiskey, and uses simple syrup thickened with xanthan gum for a silky texture.

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