Dulce De Leche Icing - cooking recipe

Ingredients

1/2 cup butter, softened
1/2 cup superfine sugar (C&H green box)
1 tablespoon milk
1/4 cup sour cream
4 tablespoons flour (I like whole wheat pastry flour)
1 (13 ounce) can dulce de leche (Use 1/2 cup out of the can)

Preparation

Cream the butter and the sugar together with a mixer until creamy.
Blend in milk, flour, and sour cream.
Put the dulce de leche into a microwaveable dish and heat it for about 5 to 10 seconds to soften it just a bit.
Add the dulce de leche to the mix and blend well.