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Banana Coffee Cake with Chocolate Chip Streusel

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Ingredients
  

  • 1 cup semisweet chocolate chips
  • 1/2 cup dark brown sugar
  • 1/2 cup chopped walnuts
  • 1 Tbsp ground cinnamon
  • 1 1/2 cups all purpose flour
  • 3/4 tsp baking soda
  • 1 tsp baking powder
  • 1/4 tsp salt
  • 1/2 cup sugar
  • 1/2 cup margarine
  • 1/4 cup vegetable oil
  • 1 tsp vanilla
  • 4 mashed very ripe bananas large

Instructions
 

  • Preheat oven to 350°F. Spray a 9x9 inch baking dish or cake pan.
  • Stir chocolate chips, brown sugar, walnuts, and cinnamon in small bowl until well blended; set streusel aside.
  • Stir together all purpose flour, baking soda, baking powder, and salt into medium bowl. Beat sugar, butter, and oil in a large bowl until fluffy. Mix in mashed bananas and vanilla. Add flour mixture and blend well.
  • Spread batter in prepared baking pan. Sprinkle with streusel pressing down a bit.
  • Bake coffee cake until toothipick inserted in center comes out clean, about 45 minutes. Cool for about 10 minutes and serve.