Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Grease a 9x13-inch baking pan or 10-inch tube pan with butter and lightly flour, tapping out excess.
- In a medium bowl, whisk together 2 cups flour, baking powder, baking soda, salt, and 1½ teaspoons cardamom. Set aside.
- In a large mixing bowl, cream the softened butter with granulated sugar using an electric mixer until light and fluffy, about 3-4 minutes.
- Add eggs one at a time, beating well after each addition. Mix in vanilla extract until combined.
- Alternate adding the flour mixture and wet ingredients to the creamed butter mixture, beginning and ending with flour mixture. Add flour mixture in three additions, and sour cream and milk mixture in two additions.
- Beat on medium speed until just combined – don't overmix. The batter should be smooth but still slightly thick.
- For the streusel topping, combine remaining ½ cup flour, brown sugar, cinnamon, remaining ½ teaspoon cardamom, and ground ginger in a medium bowl.
- Cut in cold butter cubes using a pastry cutter or two forks until mixture resembles coarse crumbs with some larger butter pieces remaining. Stir in sliced almonds if using.
- Spread half of the cake batter evenly in the prepared pan. Sprinkle half of the streusel mixture over the batter.
- Carefully spread the remaining batter over the streusel layer – it doesn't need to cover completely, as some streusel showing through is perfect.
- Top with the remaining streusel mixture, distributing evenly across the surface.
- Bake for 45-55 minutes, or until a toothpick inserted in the center comes out with just a few moist crumbs attached.
- Cool in the pan for at least 20 minutes before removing or serving directly from the pan.
- Just before serving, dust lightly with powdered sugar using a fine-mesh sieve. Serve warm or at room temperature with coffee or tea.
Notes
For best flavor, use freshly ground cardamom from whole pods. Don't overmix the batter to ensure tender texture. Cake improves overnight as cardamom flavor deepens. Can be frozen for up to 3 months. Keep streusel butter cold for best texture.