banana crumb cake

Ingredients For banana crumb cake

• 2 c

  unbleached all-purpose flour
• 2 tsp

  baking powder
• 1 tsp

  baking soda
• 1/2 tsp

  salt
• 1 c

  rolled oats
• 4

  ripe bananas, mashed
• 1 stick

  (1/2 cup) butter
• 2

  large eggs
• 2 tsp

  vanilla extract
• 3/4 c

  buttermilk
• 1/2 c

  flaked coconut, toasted
• CRUMB TOPPING
• 1/4 c

  butter, softened
• 1/2 c

  brown sugar
• 1 tsp

  ground cinnamon
• 1/4 tsp

  ground nutmeg
• 1 c

  vanilla wafer crumbs
• 1 c

  granola (with nuts and fruit is what i had on hand)
• 1 c

  chopped walnuts or pecans, toasted
• CARAMEL SAUCE
• 1/3 c

  packed brown sugar
• 2 Tbsp

  butter, room temperature
• 3 Tbsp

  heavy whipping cream
• pinch of salt
• 1/2 tsp

  water
• 1/2 tsp

  brandy..i didn't use..i added another 1/2 tsp water