Coconut Pecan Cajeta Frosting (For German Chocolate Cake)
- Bring the milk, coconut milk and buttermilk to a simmer over low heat in a small saucepan. Keep warm while you prepare the caramel.
- Combine the sugar and water in a medium saucepan over high heat and cook (do not stir) until it becomes a deep amber brown color. Slowly whisk in the warm milk mixture and continue whisking until smooth; add the vanilla seeds and corn syrup. Bring to a boil, reduce the heat to medium and cook, stirring occasionally with a wooden spoon, until the sauce is reduced by half and is the consistency of a caramel sauce, about 55 minutes.
- Once the sauce is reduced, remove from the heat and whisk in the cold better, vanilla extract, salt and rum and whisk until combined. Transfer the sauce to a medium bowl and stir in the pecans and coconut. Let the frosting cool to room temperature, stirring occasionally before frosting the cake.