HỒNG HẠNH

3/4 cup sifted cake flour 1/4 cup unsweetened cocoa powder 1 tsp baking soda 1/2 tsp salt 4 large eggs, room temperature 3/4 cup sugar 1 tbsp vegetable oil 2 tbsp buttermilk 1 tsp apple cider vinegar 1 tsp vanilla extract 1 tsp red food coloring Preheat oven to 350F. Line a jelly roll pan [...]