Delightful Cinnamon Roll Bliss Bars

Ingredients

• 1 1/2 cups all-purpose flour
• 1 tsp baking powder
• 1/2 tsp salt
• 1 cup unsalted butter, melted
• 1 cup brown sugar, packed
• 1/2 cup granulated sugar
• 2 large eggs
• 2 tsp vanilla extract
• 2 tsp ground cinnamon
• 1/2 tsp ground nutmeg
• 1/2 cup chopped pecans (optional)
• 1/2 cup white chocolate chips
• 1 cup powdered sugar
• 2 tbsp cream cheese, softened
• 2 tbsp milk
• 1/2 tsp vanilla extract