Preheat the oven to 350°F (175°C).
In a bowl, whisk together the flour, baking soda, and salt.
In a large bowl, cream the softened butter, granulated sugar, and brown sugar.
Add the eggs and vanilla extract, mixing until combined.
Gradually add the dry ingredients to the wet mixture.
Fold in the chocolate chips.
Chill the dough for at least 30 minutes.
Use a heart-shaped cookie cutter to cut the chilled dough.
Bake for 10-12 minutes, or until golden around the edges.
Let the cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack.