One of my dearest friends, Erica (and the one I’ve known the longest!), celebrated a special bday this past weekend- the big 3-0. Because I wasn’t able to make it to her bowling bday bash, I did what I always do and baked her a cake :)

It’s so nice to love cooking and baking, because it makes giving presents so easy, enjoyable and special (I also sometimes paint/draw/crochet my gifts). I mean who doesn’t love some homemade treats? Plus, it’s so nice to put some thought and effort into a present and give it that handmade touch rather than just picking up a random gift from the store because you’re “supposed to” give presents on bdays.

And I have to say, I think my gifts tend to be much more appreciated! So when it came time to get thinking about what type of cake Erica wanted, I went straight to the source. I like to be creative, but Erica wanted the basics: yellow cake with chocolate frosting. I suppose that IS the traditional bday cake combo.

Of course, I had to add my touch and make it a little different and more gourmet- adding white chocolate chips to the batter and making a sour cream chocolate frosting. But I also have been so busy  that I took a few shortcuts- using a boxed cake mix that I jazzed up.

Yes, Erica is wearing scrubs in those pics. She works in tv and is currently filming a show and is in the hospital all day long. I wish I could wear such comfy clothes to work!

Anyways, the cake result was nothing short of amazing…a birthday tradition from now on, to be sure.

Happy 30th Birthday, Erica!!!

I’m so happy to have you as my friend and I can’t wait to celebrate many more birthdays with you :)

Yellow Birthday Cake with White Chocolate Chips and Chocolate Sour Cream Frosting

Cake recipe by me, Frosting recipe taken from Smitten Kitchen adapted from The Dessert Bible

Print this recipe!

# of Servings-who cares, it’s your birthday! (Makes one 2 layer bday cake)


1 box Classic Yellow Cake mix
1 cup water
1/3 cup oil
1 cup sour cream
1 tsp vanilla
3 eggs
1/2-1 cup white chocolate chips
1 recipe Chocolate Sour Cream Frosting, recipe below

Preheat oven to 350°F.

Butter two 9-inch round cake pans (or two 8-inch, depending on how high you want the cake to be) and line with circles of parchment paper, then butter parchment.

Place cake mix, water, oil, eggs, and vanilla in a bowl. Beat well. Add eggs and beat to incorporate, 2 min. Stir in 1/2-1 cup of white chocolate chips, depending on how much you like.

Spread batter evenly in cake pan, then rap pan on counter several times to eliminate air bubbles. Bake until golden and a wooden pick inserted in center of cake comes out clean, 30 min. Cool in pan on a rack 15 minutes. Invert onto rack and discard parchment, then cool completely, about 1 hour (put in fridge if you want them to cool faster. Sometimes they’re easier to frost when cold). Do not frost until cakes are completely cool.

Chocolate Sour Cream Frosting

15 ounces semisweet or bittersweet chocolate, chopped
1 1/4 teaspoons instant espresso (optional, but can be used to pick up the flavor of average chocolate)
2 1/4 cups sour cream, at room temperature
1/4 to 1/2 cup light corn syrup
3/4 teaspoon vanilla extract

Combine the chocolate and espresso powder, if using, in the top of a double-boiler or in a heatproof bowl over simmering water. Stir until the chocolate is melted. (Alternately, you can melt the chocolate in a microwave for 30 seconds, stirring well, and then heating in 15 second increments, stirring between each, until the chocolate is melted.) Remove from heat and let chocolate cool until tepid.

Whisk together the sour cream, 1/4 cup of the corn syrup and vanilla extract until combined. Add the tepid chocolate slowly and stir quickly until the mixture is uniform. Taste for sweetness, and if needed, add additional corn syrup in one tablespoon increments until desired level of sweetness is achieved.

Let cool in the refrigerator until the frosting is a spreadable consistency. This should not take more than 30 minutes. Should the frosting become too thick or stiff, just leave it out until it softens again.