Caramel Filling

Preparation

1. Step 1

   Place the sugar and 1/4 cup plus 2 tablespoons water in a medium heavy-bottom saucepan. Set over medium-high heat, and stir to combine. Without stirring, bring the mixture to a boil, and cook until dark amber in color, about 5 minutes, washing down the sides of the pan with a wet pastry brush to prevent crystals from forming.

   Step 2

   Remove from heat. Carefully pour the cream down the side of the pan (it will spatter), stirring constantly, until fully combined. Add the butter and stir to combine. Transfer filling to a heatproof bowl, and let cool slightly before filling cookies.