A delicious coffee cake made with fresh pears. Be sure to distribute the pears evenly through the batter to be sure to have fruit in every bite.
Combine ⅓ cup sugar, brown sugar, 3 tablespoons flour, and ½ teaspoon cinnamon. Cut in 2 tablespoons butter or margarine with a pastry cutter. Set streusel aside.
Combine remaining dry ingredients. In a large mixing bowl, combine eggs, sugar, margarine, and vanilla; mix with hand mixer for 2 minutes, until well blended. Add flour mixture and sour cream alternately, beginning and ending with flour. Stir in pears with spatula, breaking up fruit so it doesn't clump. Pour into a greased 11x7 inch pan. Evenly spread streusel over the batter.
Bake in 350F oven for about 40-45 minutes, until a toothpick comes out clean. (This took me 35 in my hot oven.) Serve warm.
Adapted from the Better Homes and Gardens Best of 1997 Cookbook