lemon buttermilk sheet cake

How To Make lemon buttermilk sheet cake

• 1

  Adjust oven rack to middle position and heat oven to 325 degrees. Grease and flour 13 x 9 inch baking pan.
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  2

  Combine flour, baking powder, baking soda, and salt in medium bowl. Combine buttermilk, lemon juice, and vanilla in liquid measuring cup.
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  3

  With electric mixer on medium speed, beat granulated sugar and lemon zest until moist and fragrant, about 1 minute. Transfer ¼ cup sugar mixture to small bowl, cover, and reserve.
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  4

  Add butter to remaining sugar mixture and beat until light and fluffy, about 2 minutes. Beat in eggs and yolk, one at a time, until incorporated. Reduce speed to low. Add flour mixture in 3 additions, alternating with 2 additions of buttermilk mixture, and mix until smooth, about 30 seconds. Scrape batter into prepared pan and smooth top.
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  5

  Bake until cake is golden brown and toothpick inserted into center comes out clean, 25 to 35 minutes. Transfer cake to wire rack and let cool 10 minutes.
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  6

  For the glaze: Meanwhile, whisk confectioners’ sugar, lemon juice, and buttermilk until smooth. Gently spread glaze over warm cake and sprinkle evenly with reserved sugar mixture. Cool completely, at least 2 hours. I poked small holes in my cake with a fork. You don't have to...I just wanted some of the glaze to penetrate...
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