Flamingo Brushstroke Cake

Name: Flamingo Brushstroke Cake
Prep time: 1 h
Cook time: 20 min
Yield: 12
Ingredients: 1 cup unsalted butter, room temperature; 2 cups sugar; 6 eggs, room temperature; 1 teaspoon vanilla extract; 3 cups all-purpose flour; 1 teaspoon baking soda; 1 teaspoon salt; 1 1/4 cups sour cream; Pink food colouring; 2 cups unsalted butter, room temperature; 1 teaspoon vanilla extract; 5 cups confectioner's sugar; Pink food coloring; Pink and black candy melts, melted