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1
Preheat oven to 350*.
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2
Grease a springform pan with some oil , then line the base with parchment paper and grease the paper.
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3
Finely grate lemon zest from the lemon, and whisk together with the flour,reserve.
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4
Sqeeze juice from the lemon and reserve.
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5
Beat together, egg yolks and 1/2 cup sugar with an electric mixer at high speed until thick and pale ( 3 mins ) Reduce speed and add olive oil and reserved lemon juice, beating until just combined ( mix may look seperated )Using a wooden spoon stir in flour mixture until just combined.
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6
Beat the 4 egg whites and 1/2 tsp salt in a clean bowl, and beat until frothy, then add 1/4 cup sugar a little at a time, beating until egg whites form soft peaks ( 3 mins ).
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7
Gently fold 1/3 of the whites into the yolk mixture, then fold in remaining whites, gently but thoroughly.
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8
Transfer batter to springform pan.Sprinkle top with the 2 tbsps sugar.
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9
Baake until puffed and golden, and a wooden pick comes out clean ( 45 mins ).
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10
Cool cake on rack for 10 mins then run a thin knife around edge and remove side of pan.
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11
Cool cake to room temp and remove bottom of pan and peel off parchment paper and transfer to serving plate.
