Heat oven to 325°F. Grease and flour 13x9-inch baking pan; set aside.
STEP 2
Combine 1 cup sugar and 1/2 cup butter in bowl. Beat at medium speed, scraping bowl often, until creamy. Add sour cream, eggs and vanilla; continue beating until well mixed. Add 2 cups flour, baking powder, baking soda and salt; beat at low speed until well mixed.
STEP 3
Spread half of batter into prepared pan. Spoon cherry pie filling over batter. Spoon remaining batter over pie filling; spread carefully.
STEP 4
Stir together 1/4 cup flour, 1/4 cup sugar, pecans and cinnamon in bowl. Cut in 3 tablespoons butter until mixture resembles coarse crumbs. Sprinkle crumb mixture over batter. Bake 45-50 minutes until toothpick inserted in center comes out clean and topping is dark golden brown.