Ingredients:

  • 1 ½ cups (190 g) all-purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon baking soda
  • ¼ teaspoon salt
  • 1 cup (240 ml) plain kefir
  • ½ cup (100 g) granulated sugar
  • 2 large eggs
  • 1/3 cup (80 ml) vegetable oil
  • 1 tablespoon lemon zest (from about 1 lemon)
  • 1 teaspoon pure vanilla extract
  • 1 cup (120 g) powdered sugar
  • 2 tablespoons fresh lemon juice

Instructions:

  1. Preheat the oven to 350°F (175°C) and lightly grease the sheet pan.
  2. Combine dry ingredients: In a bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
  3. Mix wet ingredients: In another bowl, whisk together kefir, sugar, eggs, oil, lemon zest, and vanilla until smooth.
  4. Combine mixtures: Gradually add the dry ingredients to the wet mixture, stirring just until no flour is visible.
  5. Pour batter into the prepared sheet pan, spreading evenly.
  6. Bake in the preheated oven for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
  7. Cool the cake in the pan on a wire rack for 10 minutes, then invert onto the rack to cool completely.
  8. Prepare the glaze: In a small bowl, whisk together powdered sugar and lemon juice until smooth.
  9. Glaze the cake: Once cooled, pour the lemon glaze over the top of the cake, allowing it to drip down the sides.
  10. Slice and serve once the glaze has set.