A Deliciously Sweet French-Style Cake

Ingredients

• 2 cups all-purpose flour
• 2 teaspoons baking powder
• 1 teaspoon baking soda
• 1 teaspoon salt
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1/2 cup butter, softened
• 1 cup sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 cup buttermilk
• 2 cups peeled and diced apple
• 2 cups diced rhubarb