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1
Preheat oven to 350 degrees. Line the bottom of a 9- or 10-inch spring form pan with parchment. Butter the sides of the plan well.
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2
Put the sugar in the bowl of a food processor with a metal blade and process the sure for about a minute to get superfine sugar.
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3
In the bowl of a stand mixer with the paddle attachment, pour the sugar and add the butter to it. Beat the butter and sugar together until they are light and fluffy which takes about 2 minutes.
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4
In a separate bowl, mix the almond flours, cornmeal and baking powder.
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5
Add 1/4 of the flour mixture to the butter/sugar mixture, beat well. Add one egg and beat well. Alternate flour and egg additions until all are incorporated.
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6
Stir in the orange zest. Spread into the prepared pan and place in the oven on the middle rack. Bake for 40-50 minutes. The middle of the cake should be a little jiggly, but a cake tester should come out clean from a dip in the middle when it is done. The middle of the cake will deflate when you take it out to cool. Do not remove the sides of the pan at this juncture.
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7
For the glaze, put the orange and lemon juice, confectionary sugar and orange liquor into a small pan and heat enough to fully melt the sugar and reduces slightly.
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8
Using the cake tester tool, poke many, tiny holes into the top of the cake. Carefully spoon the hot syrup over the cake until it's all absorbed. Cool the cake completely with the pan still intact.
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9
To serve, remove the side of the pan and slice. Take cake to use a cake server as the middle of the cake will by soft and syrupy.
