Cinnamon Butter Cake - butter

Method

• For the filling:
• Heat the oven to 350 degrees.
• Lightly butter a 9 or 9 1/2-inch springform pan.
• Dust the pan with flour, tapping out the excess.
• In a bowl, combine the brown sugar and cinnamon.
• Divide the mixture in half.
• Place one half in a small bowl, drizzle over the melted butter, and toss to coat the mixture; it should look like damp sand.
• Set both aside.
• For the cake:
• Sift the flour, baking powder, baking soda, and salt onto a sheet of waxed paper.
• In an electric mixer, cream the butter on medium speed for 1 minute.
• Add the sugar in 2 portions, beating for 1 minute after each addition.
• Beat in the eggs, blending just to incorporate them; do not over-beat at this point.
• Blend in the vanilla extract.
• On low speed, beat in half of the flour mixture, the sour cream, then the remaining flour mixture.
• Scrape down the sides of the mixing bowl with a rubber spatula to keep the batter even-textured.
• Spoon a little more than half of the batter into the pan.
• Sprinkle over the plain sugar-cinnamon mixture.
• Spoon the remaining batter on top and smooth the top with a palette knife.
• Sprinkle the buttered cinnamon-sugar over the top.
• Bake the cake for 45 minutes, or until the top is set and a wooden pick inserted about 2-inches from the center of the cake is clean when withdrawn. The edges of the baked cake will not shrink noticeably unless the cake overbakes.
• Set the cake on a rack to cool.
• Unclasp the ring on the pan, leaving the cake on its metal base.
• Slice the cake into 10 thick wedges for serving.