Step 1

Cream butter together until smooth and light.

Step 2

Add vanilla and 3 Tablespoons sweetened condensed milk, beating until smooth.

Step 3

Add powdered sugar, a cup at a time mixing until completely incorporated after each addition.

Step 4

Turn mixer to high and beat for a couple of minutes, until light and fluffy.

Step 5

Add a little more powdered sugar or sweetened condensed milk if necessary to get your desired consistency.

Step 6

Use immediately or store in the refrigerator. To use from the refrigerator, bring to room temperature and whip slightly then use as normal.