01 -
Preheat oven to 175°C. Grease and flour a 23 x 33 cm baking pan.
02 -
In a large mixing bowl, whisk together flour, baking soda, cinnamon, nutmeg, cloves, and salt until evenly blended.
03 -
In a separate bowl, whisk together granulated sugar, vegetable oil, and eggs until smooth.
04 -
Stir pumpkin puree into the wet mixture until fully integrated.
05 -
Gradually add the dry ingredients to the wet mixture, stirring gently just until combined.
06 -
Fold in chopped walnuts or pecans, if desired.
07 -
Pour the batter into the prepared baking pan and spread evenly.
08 -
Bake for 30–35 minutes or until a toothpick inserted in the centre emerges clean.
09 -
Allow the bars to cool thoroughly in the pan on a wire rack before frosting.
10 -
In a bowl, beat butter and cream cheese together until smooth. Gradually add powdered sugar and brown sugar, mixing until fully combined.
11 -
Stir in vanilla extract. Add milk or cream, one tablespoon at a time, until the frosting reaches a spreadable consistency.
12 -
Spread frosting evenly over cooled bars. Slice into portions and serve.