A tube pan should be greased and floured before baking at 325 degrees.Add flour, baking powder, and lemon and lime zest to a separate bowl. Mix well and keep aside.
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beat butter until creamy in mixer bowl, then add sugar and beat until lighter and fluffy, 3–5 minutes.After adding each egg, stir until the yolk is incorporated.Adding vanilla and lemon extract.
2
Switch between adding 7-UP and dry ingredients to butter, sugar, egg combination. Start and finish with dry components (3 dry and 2 7-up).
3
Bake until a wooden skewer or toothpick comes out clean or with a few crumbs at 325 degrees for 1 hour and 10 minutes.Turn out after 10 minutes of pan cooling.
4
Mix 2 cups sifted powdered sugar in a bowl.Add 2 tbsp lemon juice and 1 tbsp lime juice. Spoon-mix until smooth.
5
You can thin out the glaze by adding more lemon juice or thicken it up by adding more powdered sugar. There will be about 1 cup of glaze left over.
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