Ingredients

• 1/2 cup butter, softened
• 1 1/2 cups brown sugar
• 2 large eggs
• 1 cup canned pumpkin
• 1 teaspoon vanilla
• 1 teaspoon grated lemon peel
• 1 teaspoon lemon juice
• 2 1/2 cups flour, sifted
• 3 teaspoons baking powder
• 1 teaspoon salt
• 1 1/2 teaspoons pumpkin pie spice
• 1/4 teaspoons ginger
• 1 cup walnuts, coarsely chopped