• Preheat the oven to 350℉.

  Prepare a 9-inch or 10-inch bundt pan by spreading a very thin layer of shortening or softened butter all over the inside of the bundt pan.

  Add 2-3 tablespoons of flour into the bundt pan and move it around to stick it to the shortening. Tap the sides of the bundt pan and move it in a circular motion to get the flour to stick on all the inside surfaces.
• In a large mixing bowl, using an electric handheld mixer, add the vanilla cake mix, vanilla instant pudding mix, sour cream, oil, evaporate milk, and eggs. Beat on medium speed for 1-2 minutes or until it's well combined.

  ^{*You will need to use a spatula to scrape the sides and bottom of the bowl to ensure everything gets mixed in well.}
  1 box (15.25 oz) vanilla cake mix, 1 box (3.4 oz) instant vanilla pudding mix, 1 cup full-fat sour cream, 1 cup vegetable or canola oil, 1 can (5 oz) evaporated milk, 4 large eggs
• Separate the cake batter into 6 different smaller bowls. It's a little less than 1 cup of cake batter per bowl.
• Add 2-4 drops of gel food coloring, one color per bowl, to each bowl. Stir it until it's mixed together well and the color is as vibrant you want it.
• Start with the red batter and spoon it or dump it into the bottom of the bundt pan, making sure that it goes all the way around the bundt pan.
• Next, do the orange batter and place it directly on top of the red batter. Once again, make sure that it goes completely around the bundt pan.
• Repeat this same process with the yellow, green, blue, and purple cake batter.

  ^{*It's important that you don't mix the colors at all. Carefully spoon or dump the batter directly on top of the previous color. Use a plastic spoon, only if needed, to gently move the batter around.}
• Bake for 35-45 minutes or until a toothpick inserted into the cake comes out clean or with moist crumbs on it. If it's wet batter then it needs to cook longer.
• Allow the bundt cake to cool inside the warm pan for 15 minutes before inverting it onto a cooling rack to cool completely before glazing it.

Make The Glaze

• Mix together all the glaze ingredients in a mixing bowl until it's combined well and at the consistency that you want it.

  The glaze should be pourable not not so thin that it just falls off the cake. Use more/less powdered sugar and heavy cream as needed.

  Pour the glaze over top the Bundt Cake and immediately decorate with rainbow sprinkles.

  ^{* The cake should be cooled completely before adding the glaze on it.}