Lemon Cake without sauce back

1 lb lemon 10 lemon slices 1 teaspoon butter , to grease pan 1/2 cup flour 1 1/2 cups whole almonds 1 teaspoon baking powder 1/2 teaspoon salt 5 eggs ,[...]

1 cup butter , softened 1 cup sugar 1 1/2 teaspoons grated lemon zest 1 teaspoon vanilla essence 4 eggs , at room temperature 2 1/2 cups all-purpose flour 1[...]

1 cup butter , softened 1 cup sugar 1 1/2 teaspoons grated lemon zest 1 teaspoon vanilla essence 4 eggs , at room temperature 2 1/2 cups all-purpose flour 1[...]