Virvlat blåbärslimon-tymkak

👩‍🍳 Gör så här

1. 1
   Preheat the oven to 375 degrees F. Grease a (9x5 inch) loaf pan.
2. 2
   In a large mixing bowl, beat together the butter, 1/2 cup sugar, and lemon zest until combined. Add the sour cream and vanilla, beating until smooth. Beat in the eggs, one at a time, until combined. Add the flour, baking powder, and salt. Fold in 1 1/4 cups blueberries.
3. 3
   Spoon half the batter into the prepared pan. Swirl in 1 tablespoon of blueberry jam, leaving a few streaks of jam throughout the batter. Add the remaining batter and then swirl in the remaining 1 tablespoon jam. Sprinkle on the remaining 1/4 cup blueberries and 1 tablespoon sugar.
4. 4
   Transfer to the oven and bake for 55-60 minutes, or until center is just set. Let cool before glazing.
5. 5
   Meanwhile, make the glaze. In a small bowl, whisk together the powdered sugar, and lemon juice until smooth and drizzly. Stir in the thyme, if using.
6. 6
   Drizzle the glaze over the cake. Slice and enjoy!.