Snickerdoodle Cake

minutes. Mixture will look curdled as a result of the egg liquid and solid butter combining. Scrape down the sides and up the bottom of the bowl as needed. With the mixer running on low speed slowly add the dry ingredients. With the mixer still running on low speed slowly pour in the buttermilk then mix just until combined. You may need to whisk it all by hand to make sure there are no lumps at the bottom of the bowl. The batter will be slightly thick.
Pour batter evenly into cake pans. If desired weigh them with a kitchen scale to ensure accuracy. Set aside for a few minutes as you make the cinnamon swirl.
For the cinnamon swirl With a fork mix the brown sugar flour and cinnamon together until combined. Pour the melted butter on top and mix just until combined. Use immediately in the cake batter next step because the longer it sits out the harder it will get as a result of the butter solidifying.
Drop small spoonfuls of the cinnamon swirl on each of the unbaked cakes. Use a knife to gently swirl the spoonfuls into the batter. Some pieces will remain as chunks thats fine! and some will swirl into the batter.
Bake for around 2326 minutes or until the cakes are baked through. To test for doneness insert a toothpick into the center of the cake. If it comes out clean its done. Allow cakes to cool completely in the pans set on a wire rack. The cakes must be completely cool before frosting and assembling.
Make the frosting In a large bowl using a handheld mixer or stand mixer fitted with a whisk or paddle attachment beat the butter on medium speed until creamy about 2 minutes. Switch the mixer up to mediumhigh speed and add the