Preheat the oven to 350 degrees.
In a large bowl, whisk the melted butter and brown sugar together until there are no lumps.
Add in the eggs and vanilla and whisk hard for 30 seconds.
Using a spatula, gently stir in the carrots until well mixed.
Add in the flour, cloves, nutmeg, ginger, cinnamon and salt and whisk until combined.
Stir in the chopped pecans and pour into a 9” x 9” baking pan (either a non-stick pan-or spray with cooking spray/line with parchment paper) and bake for 30-35 minutes, or until a toothpick comes out cleanly.
Remove and let cool completely.
To make the frosting, place the butter and cream cheese in a large bowl and beat with an electric mixer (or stand mixer) until smooth and creamy.
Add in the vanilla, cinnamon and powdered sugar and beat some more.
Using an offset spatula, spread the frosting in an even layer over the top of the blondies.
Sprinkle with the remaining pecans and slice into even sized bars and serve.