In a large bowl, cream together the butter and sugar until light and fluffy.
Beat in the egg and vanilla extract.
In a separate bowl, whisk together the flour and baking soda. Gradually stir the dry ingredients into the wet ingredients.
Roll the dough into 1-inch balls and place on a greased baking sheet. Flatten each ball with your finger and then use a heart-shaped cookie cutter to cut out the cookies.
Bake for 8-10 minutes, or until lightly browned. Allow to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.
Optional: Sprinkle with decorating sugar before baking, if desired.
Interesting Facts
These cookies are a great way to show your love on Valentine's Day.
You can use any shape cookie cutter to make different shapes of cookies.
If you don't have a heart-shaped cookie cutter, you can use a knife to cut out the shape of a heart.