Prepare two baking sheets by lining them with parchment paper. Set aside.
In a large mixing bowl, beat cake mix, eggs, and vegetable oil until dough is smooth.
If dough is sticky, place it in the refrigerator for 15-30 minutes until it is not.
Place powdered sugar in a small bowl.
Using a 1-tablespoon cookie dough scoop, scoop a ball of dough. Gently roll it in your hands until smooth.
Next, roll each ball of dough in the powdered sugar until it is completely covered.
Place covered balls of dough on your prepared baking sheets at least 3 inches apart.
Bake for 10-12 minutes.
As soon as you remove the cookies from the oven, gently press a heart-shaped candy into the center of each cookie while they’re still warm.
Allow cookies to cool completely on the baking sheets before serving or transferring to a storage container.
Notes
Be Careful Not to Overbake – Cookies should have firm edges and soft centers, but they shouldn’t turn golden brown. Remove them promptly to avoid drying out.
Room Temperature Ingredients – Take your eggs out of the refrigerator 20-30 minutes before baking. Room temperature eggs mix more easily and result in a smoother, more consistent dough.
Don’t Over Mix the Dough – Mix just until the ingredients are combined. Overmixing can make the cookies dense instead of light and fluffy.
Chill Sticky Dough – If the dough feels too sticky to handle, chill it in the refrigerator for 15-30 minutes. This makes rolling the dough into balls much easier.
Space Out Cookies – Leave about 2-3 inches between each ball of dough on the baking sheet to prevent them from spreading into each other as they bake.
Use a Cookie Scoop – For uniform cookies that bake evenly, use a small cookie scoop to portion out the dough.
Add Candies Quickly – Press the heart candies into the cookies as soon as they come out of the oven while the cookies are still warm and soft.