Easy Semi-Homemade White Chocolate Rainbow Layer Cake Recipe
This white chocolate rainbow cake pairs six gel-colored layers from doctored white cake mix with pale buttercream flavored by melted white chocolate.
Essential Concepts
Divide batter by weight, cool each layer fully, and let the chocolate cool before frosting; related posts: [Doctored White Cake Mix](/doctored-white-cake-mix/) and [White Chocolate Buttercream](/white-chocolate-buttercream/).
