a birthday cake and recipe networking

Lately, I've been on an "everyday baking" kick. I made carrot cake sandwich cookies last Saturday, a pear crisp with cranberries on Tuesday, and roasted chickpeas this morning. Then, I made my first ever celebration cake.




It's a birthday cake for my mom. To be honest, I've been planning this cake for weeks! Lame, right? I was thinking about smitten kitchen's best birthday cake. I then realized I didn't have two nine inch cake pans; I only have one. Oops. Luckily, I came across Big Girl Small Kitchen recipe for a one layer yellow cake with a peanut butter filling. I had a big tub of sour cream, just chilling in my fridge, begging to be used, so smittenkitchen's chocolate sour cream frosting seemed fitting.

BGSK yellow cake + BGSK peanut butter filling + smitten kitchen's chocolate sour cream frosting = a delicious, yet messy, birthday cake.

Notes: For the cake, I substituted 3/4 of the AP flour for white whole wheat. The sour cream should be 3/4 cup. The flour, sugar, baking soda, powder, salt, butter, and sour cream mixture was realllyy dry; I had to add more dollops of sour cream to moisten it. I "kneaded" the mixture with my hands. I was afraid the cake would become tough but it was fine! It's not my favorite yellow cake; I will most likely replace this cake recipe with another one.
For the filling, I only had 3 tbsp of peanut butter left in the jar. It still tasted delicious.
For the frosting, I halved everything and I still had a bit frosting left, even though I ate globs of it while I was making it. Instead of light corn syrup, I used 6 tsp of agave. Agave is similar to corn syrup because it prevents crystallization, or something like that. I dunno.
I baked the cake. While the cake was baking, I made the frosting and popped it in the fridge to chill. When the cake was taken out and completely chilled, I whipped up the filling. I sliced the cake in half, horizontally, and slathered on the filling. I saved a little and put it in a small Ziploc to pipe on the lettering. Finish it off with the chocolate frosting and it's done! Pretty simple and it tastes delicious.