Banana Walnut Cream Cake with White Chocolate - Recipes by Clare

Ingredients

• 2 cups all-purpose flour.
• 1 teaspoon baking soda.
• ½ teaspoon salt.
• ½ cup unsalted butter, softened.
• 1 cup granulated sugar.
• 2 large eggs.
• 1 teaspoon vanilla extract.
• ½ cup sour cream.
• 3 ripe bananas, mashed.
• ½ cup chopped walnuts.
• ½ cup white chocolate chips.
• 2 cups creamy custard.
• 1 banana, sliced for garnish.
• ¼ cup walnuts for garnish.