Preheat the oven to 350 degrees.

In a large bowl cream together the butter, sugar, and brown sugar.

Add in the egg and vanilla and beat until well combined.

Add the flour, baking soda, and salt and mix until combined.

Fold in the chopped pecans.

Shape the dough into 1 inch balls and place them 2-3 inches apart on a baking sheet.

Bake for 10 minutes or until set (not glossy) and lightly browned.

Remove from oven and cool for 2-3 minutes before removing to a cooling rack to cool completely.

To make the frosting combine the brown sugar and cream in a small pot over medium heat. Bring the mixture to a low boil, stirring constantly, for 3-4 minutes.

Remove the pot from heat and stir in the butter.

Stir in 1 1/2 cups of powdered sugar and beat until smooth. If frosting is too thin add more sugar while keeping in mind the frosting will harden as it cools.

Spread each cookie with 1 tablespoon of frosting and top with a pecan half.