Sour Cream Blueberry Cake

This cake is two desserts in one. A buttery, shortbread-like base gets patted into a springform pan, then heaped with four cups of fresh blueberries and blanketed with a tangy sour cream custard that bakes into a silky, set layer on top.

The sour cream topping is what makes this stand out from a standard blueberry cake. Mixed with egg yolks, sugar, and vanilla, it transforms into a creamy, almost cheesecake-like layer that cradles the berries as it firms up in the oven.

The hour-long bake gives the blueberries time to burst and release their juices into the custard, creating pockets of deep purple sweetness throughout.

Kitchen Tips

• Pat the base dough evenly across the bottom of the pan and slightly up the sides. Thin spots overbake and thick spots stay doughy.
• Use fresh blueberries for the best texture. Frozen berries release too much water and can make the custard runny.
• The cake is done when the edges are lightly browned and the custard center is set but still has a gentle jiggle. It firms up as it cools.
• Let it cool completely in the springform before releasing the sides. The custard needs time to set or it slumps.

Variations

• Swap blueberries for fresh raspberries or sliced peaches for a different seasonal fruit version.
• Add a teaspoon of lemon zest to the sour cream mixture for a brighter, more citrusy custard.
• Dust with powdered sugar before serving instead of whipped cream for a lighter presentation.