Cream the butter and sugar together for a minimum of 5 minutes.
Add in the eggs, one at a time, beating well after each addition.
Pour in the vanilla extract.
Sift in the flour, maizena, and salt.
Mix the dough just until no more visible white bits remain, then use a spatula to form the dough into a ball.
Transfer the dough ball to a ziplock bag and roll it out slightly.
Place the dough in the fridge to chill for 25 minutes until firm.
Preheat the oven to 175°C and line a baking sheet with a perforated baking mat.
On a floured surface, roll the dough out to 8mm thickness.
Using a floured heart-shaped cookie cutter, cut out the cookies and place them on the lined baking sheet.
Bake for 12 minutes.
Allow the cookies to cool on the sheet for 15 minutes before transferring to a baking rack to cool completely.
Enjoy as is, coat in sugar, or top with frosting and sprinkles.