Valentines Swirl Bundt Cake

This is very easy to make. In fact it's so easy I have a hard time even calling it a recipe. I just wanted to make a Valentine's Day cake in my pretty heart-shaped bundt pan and I wanted it to have a vibrant red swirl in the center. But I had so many people asking for the recipe that I decided to go ahead and write a blog post about it. So here I am, about to reveal all my secrets.
I very rarely use anything with dyes in it. But alas, the only way to achieve this vibrant red swirl is to use a cake mix. So in addition to the white cake mix, I found a "half" cake mix in vibrant red. These are sometimes called cupcake mix and are half the size of a regular cake mix. (I used this brand found here. But I'm sure any brand will work well.)

For this recipe you will need:
One 12 cup bundt pan (want the scallop heart one? click here)
1 Box Duncan Hines white cake mix (Or french vanilla*)
1 Pillsbury Funfetti cupcake mix in radiant red

For the drizzle:
1 Cup powdered sugar
1-2 Tablespoons milk

Instructions:
Preheat oven 350F. Grease your bundt pan well with a spray or butter.
Mix white cake according to box directions. (*If using the french vanilla, omit the egg yolks to end up with a white cake).
Set aside the white and mix together the red cake according to box directions.
Now you should have 2 bowls, one red and one white.
Using half the white batter, fill the bottom of the bundt pan. Next, using half the red batter, gently pour over top of the white. Repeat with white and end with red. 
Don't stir, shake or mix the batter once they are in the pan. It will marble on its own while baking.

Place in preheated oven and bake for 40-45 minutes until tooth pick inserted comes out clean. This cake takes a little longer to bake because it is basically 1 and ½ cake mixes. 

Let it cool for 10 minutes in the bundt pan before turning it out onto a cake plate.
Once it cools fully, mix together the powdered sugar and milk until you have a thick drizzling consistency. Drizzle over cake and enjoy! Happy Valentine's Day!