I make this at least twice a year when blueberries are in season. Makes a great coffeecake or dessert.
I make this at least twice a year when blueberries are in season. Makes a great coffeecake or dessert.
Standard measurements printed on a recipe card fail to reveal how physical density dictates the architecture of a baked fruit cake. Dense batters require deliberate layering to support heavy mix-ins without sagging into a dense, unbaked core. Four cups of fresh fruit introduce significant moisture into the pan, which must be counterbalanced by precise thermal regulation.
Preheating the oven to 375 degrees Fahrenheit provides the initial thermal shock necessary to activate four teaspoons of baking powder rapidly before the structural proteins in two whole eggs coagulate. Folding the berries by hand rather than using an electric mixer prevents the delicate skins from rupturing and releasing excess liquid into the crumb. Dividing the batter into two distinct layers with a central seam of streusel guarantees that the heavy fruit remains suspended evenly rather than sinking to the bottom of a 13-inch pan. Baking takes between 25 and 35 minutes, monitored by inserting a wooden toothpick into the geometric center until it emerges free of wet crumbs.