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Ingredients
- 4 egg yolks
- 3 T. sour cream
- 1 1/2 tsp. pure vanilla extract
- 2 C. sifted cake flour
- 1 C. sugar
- 1/2 tsp. baking powder
- 1/2 tsp. baking soda
- 1/2 tsp. salt
- 12 T. softened unsalted butter
- 1/2 C. sour cream
Preparation
Step 1
1. Preheat oven to 350°F. Grease a 9" springform pan, line bottom with wax paper, grease again and flour.
2. In a bowl combine egg yolks, sour cream and vanilla extract.
3. In bowl of an electric mixer, combine sifted cake flour, sugar, baking powder, baking soda and salt. Mix at low speed for 30 seconds. Add unsalted butter and sour cream and mix again for 10 seconds. Increase to high speed and beat for beating for 20 seconds each time. Scrape down sides; scoop into prepared pan and bake for 35-45 minutes until cake tester inserted in center comes out clean.
4. Let cool for 10 minutes. Unmold and invert onto a cake rack to cool completely.