
1/2 cup unsalted butter, melted
1/2 cup brown sugar, packed
1/4 cup granulated sugar
1/4 cup milk
2 large eggs, beaten
1 teaspoon vanilla extract
1/2 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/4 teaspoon salt
1 cup chopped pecans
1/4 cup all-purpose flour
1/4 cup brown sugar (for topping)
2 tablespoons unsalted butter, softened