Ingredients:

• 1 1/2 cups (200g) all-purpose flour
• 1/2 teaspoon salt
• 1 teaspoon baking soda
• 1 teaspoon ground ginger
• 1/2 teaspoon cinnamon
• 1/2 teaspoon nutmeg
• 1/2 teaspoon allspice
• 1 cup (240 ml) pumpkin puree, store-bought or homemade
• 1 cup (200g) sugar
• 1/2 cup (112g) unsalted butter, melted
• 2 large eggs, beaten
• 1/4 cup water
• 2 teaspoons molasses
• 1 teaspoon orange zest, optional
• 1/2 cup (65g) chopped pecans or walnuts, optional
• 1 cup powdered sugar
• 2 tablespoons orange juice
• 1 teaspoon orange zest