Equipment Needed
- 9-inch round or square cake pan
- Parchment paper
- Electric hand mixer or stand mixer (you can mix by hand, but a mixer is easier)
- Two mixing bowls (one large, one medium)
- Whisk and rubber spatula
- Microplane or fine grater (for the lemon zest)
Step-by-Step Instructions
Start by preheating your oven to 350°F (175°C) and lining your cake pan with parchment paper. I grease the pan first so the paper sticks, then let the parchment overhang slightly for easy lifting later—a trick I learned after wrestling a stuck cake out of a pan once. In your large bowl, combine the softened butter and sugar. Now, here’s a key moment: cream them together on medium-high speed for a full 3-5 minutes. I know it seems like a long time, but this isn’t just mixing; you’re incorporating air that will give your cake lift. The mixture should become noticeably pale, fluffy, and almost whipped. Then, beat in the vanilla and the eggs, one at a time, making sure each is fully incorporated before adding the next.
While your butter and sugar are getting fluffy, whisk together your dry ingredients in the medium bowl: the flour, baking powder, baking soda, and salt. This isn’t just busywork. Whisking ensures the leaveners are evenly distributed, preventing those dreaded bitter pockets of baking soda. To this dry mixture, add your lemon zest. I use my fingers to rub the zest into the flour; this helps release the oils and disperses the flavor beautifully throughout the entire cake, not just in little clumps.
Now, with your mixer on low speed, you’ll alternate adding the dry ingredients and the buttermilk to the butter mixture. I start and end with the dry ingredients, adding in three parts. So, add about one-third of the flour mixture, mix until just combined, then half the buttermilk, another third of flour, the rest of the buttermilk, and finally the last of the flour. Mix only until the last streaks of flour disappear. The batter will be thick and luxurious. Here comes the fun part: gently fold in the cranberries with your spatula. Be careful not to overmix, as this can toughen the cake.(See the next page below to continue…)