Sort of Classic Yellow Cake with Chocolate Frosting

There’s a special kind of chaos that happens when a baker hears the words,

“I’m making a cake tomorrow.” 

My sister and I were out together when she casually mentioned she’d be baking Rylee’s 20th birthday cake—classic yellow cake with chocolate frosting, the kind our dad adores – it’s his favorite! 
Before she even finished the sentence, I practically tackled her in the restaurant booth, rattling off fillings and frostings and architectural concepts like I was pitching a Food Network finale.

She laughed, told me to slow my roll, and gently reminded me that Rylee likes the “basics.” No layers of mousse. No torched meringue. No twelve-step ganache ritual.

Just a simple yellow cake with simple chocolate frosting.

For someone who considers “basic” a personal challenge, this was a moment of deep growth. But I promised. And honestly, there’s something kind of beautiful about honoring a classic, especially for a girl who’s grown from a frosting-covered toddler into a bright, hilarious, twenty-year-old human I adore.

So here it is: my lovingly restrained, back-to-basics birthday cake for Rylee.

Well, sort of - I had to go a little rogue:

We all know I must Ashley‑ify things. I don’t do simple. I don’t do basic. It’s just not in my DNA. If I’m baking for someone I love, it has to feel special—like a little edible love letter.

So yes, the four cake layers are technically a “basic” yellow cake, but they’re also impossibly moist and tender, the kind of crumb that makes you close your eyes for a second. And tucked between those layers are three ribbons of silky, dreamy chocolate‑hazelnut ganache. They are so smooth, they practically whisper. That chocolate silk doesn’t just taste divine, it seals in every bit of moisture along the sides, like a protective chocolate bear hug.

Then comes the frosting. This is a traditional chocolate buttercream but elevated with the richest Dutch‑process cocoa—Droste’s, of course, because if I’m doing this, I’m doing it right.  (And Droste’s is also Dad’s favorite).
Finally, because restraint is not my spiritual gift, the whole cake bathes in a dusting of gold glitter and a crown of the happiest yellow roses.

Anything for my dearest, darling Rylee. Twenty looks beautiful on her. Happy Birthday, sweet girl.

In the end, this cake became more than a birthday dessert—it was a little celebration of Rylee and my expression of love and how I bake for the people I love. A simple birthday cake turned into something joyful and a little over-the-top, the way all the best family traditions tend to evolve. I wish I had been there to see her face light up when she saw those golden sparkles and sunny yellow roses, the epitome of her beauty and strength. 

Here’s to twenty years of Rylee, to the classics that anchor us, and to the tiny touches of magic we can’t help but add along the way.

 

Sort of Classic Yellow Cake with Chocolate Frosting

🍰 Four‑Layer Yellow Cake:

3 cups all‑purpose flour
2 ½ tsp baking powder
1 tsp. fine salt
1 cup unsalted butter, room temperature
2 cups granulated sugar
4 large eggs, room temperature
1 Tbs. vanilla extract
1 cup whole milk, room temperature
½ cup sour cream, room temperature

Preheat the oven to 350°F. 
Grease four 9‑inch round cake pans and line with parchment. 

In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.

Cream the butter and sugar in a stand mixer on medium‑high until pale and fluffy, about 3–4 minutes. 

Add the eggs one at a time, mixing well after each. Stir in the vanilla.

Add the dry ingredients in three additions, alternating with the milk and sour cream. Begin and end with the dry mixture. Mix just until combined. Do not overmix.

Divide the batter evenly between the four prepared pans. 

Bake for 28–32 minutes, or until the centers spring back and a toothpick comes out clean.

Remove from the oven and let the cakes cool completely. 

Transfer to the fridge or freezer (wrapping tightly in plastic wrap if freezing) and chill until very cold for filling and icing.

Silky Chocolate Hazelnut Filling:

2 cups Italian chocolate spread (Nutella)
1 ½ cups basic vanilla buttercream (*see below, divide in ½, and skip the cocoa)

Using a stand mixer, cream together the Italian chocolate spread and buttercream until super smooth.

🍫 *Chocolate Buttercream (Droste Dutch Cocoa):

2 cups unsalted butter, room temperature
6 cups powdered sugar, sifted
1 cup Droste Dutch‑process cocoa powder
½ tsp. fine salt
1 tsp. vanilla extract
¼ cup heavy cream, as needed

In a stand mixer, whip the butter on medium‑high until creamy and slightly lighter in color, about 2 minutes.

Add the powdered sugar, cocoa powder, and salt. Mix on low until everything is moistened, then increase the speed to medium.

Pour in the vanilla and 4 Tbs. of cream. Beat for 2–3 minutes, until the frosting is silky. Add more cream, one Tbs. at a time, until it reaches the desired consistency.

Whip it good! For extra‑fluffy buttercream, whip an additional minute.

Assembly:

Place the first cake layer on a cake stand, securing to a cake board with a bit of silky filling.

Slather ¼ of the chocolate‑hazelnut ganache filling on top of the cake layer.

Repeat with all layers.

Seal in the cake’s moisture with the last ¼ of the silky ganache.

Chill for several hours.

Frost the outside with chocolate buttercream, don’t be shy.

Add gold glitter, yellow roses, or whatever magic you feel compelled to sprinkle on top.