👩🍳 Instructions
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1
Preheat oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan. In a medium bowl, whisk together flour, baking powder, baking soda, and ½ teaspoon salt. Set aside.
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2
In a large bowl, cream softened butter and 1¾ cups granulated sugar until light and fluffy (3-4 minutes). Beat in eggs one at a time, then stir in 1 teaspoon vanilla extract and 2 tablespoons lemon zest.
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3
In a small bowl, whisk buttermilk and ¼ cup lemon juice. Gradually add dry ingredients to wet in three additions, alternating with buttermilk mixture, starting and ending with dry. Mix on low until just combined.
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4
Pour batter into prepared pan. Bake 30-35 minutes, or until a wooden skewer inserted into the center comes out clean. Let cool in pan on a wire rack for 15-20 minutes.
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5
For the filling: In a medium saucepan, whisk 1 cup granulated sugar, cornstarch, and ½ teaspoon salt. Gradually whisk in 1 cup lemon juice and 1 tablespoon lemon zest until smooth. Whisk in egg yolks.
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6
Cook over medium heat, whisking constantly, until thickened and just bubbling (5-7 minutes). Remove from heat, stir in ½ cup butter until melted and smooth.
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7
Poke holes all over the slightly cooled cake (1-inch intervals). Pour warm lemon filling evenly over cake, allowing it to seep into holes. Spread any excess over the top. Cool completely, then cover and refrigerate for at least 2 hours (or overnight).
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8
Just before serving, make whipped cream: In a chilled large bowl, combine cold heavy cream, powdered sugar, and 1 teaspoon vanilla extract. Beat with an electric mixer until stiff peaks form.
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9
Spread whipped cream over chilled cake. Garnish with extra lemon zest or slices if desired. Serve immediately.
💡 Notes
For a shortcut, use a lemon or vanilla boxed cake mix. Ensure filling is cooked until visibly thick to avoid a runny texture. Cake can be made 2 days ahead; add whipped cream just before serving. Store leftovers covered in the refrigerator for up to 4 days.
🥗 Nutrition (per serving)
Calories
380 kcal
Protein
5g
Total Fat
22g
Saturated Fat
13g
Carbs
40g
Fiber
1g
Sugar
28g
Sodium
200mg
Cholesterol
100mg