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["Frosting: Combine 1 1/2 cups sugar, 3/4 cup butter, 1 1/2 tsp vanilla, 4 egg yolks, and evaporated milk in a 2-quart pan over medium heat. Bring to a simmer and cook until thick (about 12 minutes) Strain through a sieve into a bowl; stir in pecans and coconut; chill frosting until firm", "Heat oven to 350 degrees F. Grease three 9"" round cake pans with butter, line bottoms with parchment circles. Grease parchment and set aside", "Cake: Put chocolates into a small bowl and pour in 1/2 cup boiling water; let sit for 1 minute Stir until smooth and set aside", "In another bowl, whisk flour, baking soda and salt and set aside", "In a standing mixer, beat 1 1/4 cups sugar and remaining butter until fluffy. Add remaining egg yolks one at a time. Add chocolate mixture and remaining vanilla; beat until smooth", "On low speed, alternately add flour mixture and buttermilk until just combined; set batter aside", "Meanwhile, whip the egg whites to soft peaks. Add remaining sugar; whip to soft peaks", "Fold egg whites into batter; divide between pans and smooth batter.", "Bake until cakes are set, 25-30 minutes", "Let cakes cool, then frost the top of each cake and assemble, leaving the sides bare"]
