With the mixer on low, add the eggs one at a time. Make sure each egg is fully incorporated before adding the next. This helps to evenly distribute the fat and create a well-emulsified batter. The eggs contribute to the richness and structure of the cake.
4. Incorporate the Flour
Once the eggs are fully mixed in, slowly add the cake flour in small batches. Mix on low speed until just combined, avoiding overmixing to prevent a dense texture. Cake flour is preferred for its lower protein content, which results in a finer, softer crumb.
5. Add Buttermilk, Lemon Extract, and Zes
In a separate bowl, combine the buttermilk, lemon extract, and lemon zest. Add this mixture to the batter and fold by hand using a spatula. The buttermilk adds a subtle tang and helps keep the cake moist, while the lemon extract and zest enhance the vibrant citrus flavor.
6. Gently Fold in the Blueberries
