Swirl Coffee Cake

• 1 stick butter
• 3/4 c. sugar
• 2 eggs 
• 2 tsp vanilla 
• 1 3/4 c. flour
• 1 tsp baking powder
• 1 tsp baking soda
• 1/2 tsp salt
• 1 c. sour cream or yogurt
• 1/2 c. brown sugar
• 1 c. toasted chopped pecans
• 2 tsp cinnamon

 Combine the brown sugar, cinnamon, and nuts; stir and set aside. Cream butter and sugar. Add eggs and vanilla, beating well after each addition. Sift together the flour, baking powder, soda, and salt; add to creamed mixture alternating with sour cream, beginning and ending with flour. Pour half the batter into a greased, 10-inch tube pan; sprinkle half of pecan mixture over batter. Repeat layers. Bake at 350 F for 45-50 minutes or until toothpick comes out clean. Cool 5 minutes and then turn out onto serving plate.