Blueberry Sour Cream Coffee Cake
You can always tell when we're baking this Bundt cake in our stores - the air fills with the perfume of blueberries and customers linger, waiting for a taste. Our Wild Maine Blueberry jam creates a ribbon of blueberry filling in the middle of the cake. Although we serve it for dessert, it is also great for breakfast or brunch or a midafternoon snack. Sometimes we add a splash of rum to the melted jam that is drizzled over the top of the cake.
Preheat the oven to 350°F (175°C). Butter and flour a 10-inch Bundt pan.
Sift together the flour, baking powder, and salt in a medium bowl. Set aside.
Using an electric mixer on high, beat the butter in a large mixing bowl until soft and creamy. Add the sugar and beat until fluffy. Beat in the eggs, one at a time, making sure the first egg is well incorporated before adding the second. Add the sour cream and vanilla and beat until the mixture is smooth. Turn the mixer to low, add the flour mixture, and beat just until incorporated.
Transfer 1/2 cup of the batter to a small mixing bowl and set aside. Pour the remaining batter into the prepared pan and smooth the top. Make a 1-inch trough in the center of the batter all the way around the pan. Add 3/4 cup of the blueberry jam into the reserved batter and beat with the electric mixer until thoroughly combined. Spoon the blueberry batter evenly into the trough.
Bake for 1 hour, or until the cake begins to pull away from the edges of the pan and a skewer inserted in the center of the cake comes out clean. Cool the cake in the pan for 15 minutes, then invert the cake onto a wire rack. Cool the cake completely on the rack.
Melt the remaining 1 tablespoon blueberry jam in a small pan over low heat. (Alternatively, melt the jam in a small bowl in the microwave on medium for 15 seconds.) Stir the rum (if using) into the melted jam. Sift the confectioners, sugar over the cake and drizzle with the melted jam. Serve immediately, or store the cake in an airtight container at room temperature for up to 3 days. The cake can also be frozen for up to 1 month. Defrost at room temperature before serving.