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all purpose flour blanched, sliced almonds baking powder baking soda salt softened butter granulated sugar almond extract vanilla extract large eggs sour cream
Preheat the oven to 325 degrees. Butter the sides and bottoms of a 9-inch springform pan.
In a spice or nut grinder (or food processor or blender), pulse the almonds until finely ground. Then in a medium bowl, combine the flour, ground almonds, baking powder, baking soda, and salt together. Set aside.