for the cake
- 3 cups all-purpose flour
- 2 cups granulated sugar
- 1 teaspoon baking soda
- 1 teaspoon ground cinnamon
- 1/2 teaspoon salt
- 2 cups chopped ripe bananas
- 1 cup drained crushed pineapple
- 1 cup vegetable oil
- 2 large eggs , beaten
- 1 1/2 teaspoons vanilla extract
- 1 cup (4 ounces) finely chopped walnuts, plus more for the topping
- 1/2 cup raisins
for the frosting
- 4 ounces cream cheese , at room temperature
- 1/4 cup butter , at room temperature
- 1/2 pound confectioners’ sugar (about 4 1/2 cups sifted)1 teaspoon vanilla extract
for the white chocolate coating
- 12 ounces white chocolate chips, melted in 30 second intervals in the microwave