Blueberry Tea Cake

Ingredients

Cake

• 3/4 cup sour cream, heaping
• 1/2 teaspoon baking soda
• 12 tablespoons unsalted butter, at room temperature, plus more for the baking dish
• 1 1/2 cups superfine sugar, heaping
• 2 teaspoons finely grated lemon zest
• 1 teaspoon vanilla extract
• 3 large eggs
• 2 cups fresh blueberries
• 3 cups all-purpose flour, scant
• 1 1/2 teaspoons baking powder

Frosting

• 8 ounces cream cheese, room temperature (1 block)
• 1/2 cup unsalted butter, room temperature
• 1 teaspoon finely grated lemon zest
• 1 teaspoon vanilla extract
• juice from 1/4 lemon
• 16 ounces powdered/icing sugar (4-5 cups, Just keep adding sugar until you get the frosting consistency that you would like)

Directions

1. Preheat the oven to 350 degrees. Butter a 9 x 13 inch baking pan and line it with parchment paper, allowing the excess paper to hang over the edge of the pan.
2. Combine the sour cream and baking soda in a small bowl and let stand for 5 minutes. In a separate bowl whisk together the flour and baking powder, set aside. Place the blueberries in a separate bowl and toss with a spoonful of the flour mixture, just to coat the berries.
3. In a large bowl, beat the butter and sugar with an electric mixer until light and creamy. Add the lemon zest and vanilla and beat until combined. Beat in the eggs, 1 at a time, then add the sour cream mixture and beat just until combined.
4. Add the remaining flour mixture to the wet ingredients and mix just until combined. Gently fold the flour-coated blueberries into the batter, being mindful not to overmix.
5. Spoon the batter into the prepared pan and bake for about 45 minutes, until a toothpick inserted in the center comes out clean. Let cool in the pan for about 10 minutes, then carefully remove the cake to a wire rack to cool completely, either by using the parchment paper as handles or by inverting the cake onto a wire rack and then inverting it again.
6. When the cake is completely cool, frost with cream cheese frosting.
7. To make the frosting, beat all of the ingredients except the sugar with an electric mixer until light and fluffy. Gradually mix in the sugar and beat until smooth. Use immediately.