01 -
Set the oven to 350°F (175°C) and line an 8-inch square baking dish with parchment paper to easily lift out later.
02 -
Mix your dry ingredients in a big bowl first. Then toss in the softened butter, eggs, and vanilla. Blend until it forms a smooth dough. Gently stir in the Valentine sprinkles so they're evenly spread out.
03 -
Press the dough evenly into the parchment-lined pan, making sure it fills the corners. Pop it in the oven for 15-20 minutes, or until a toothpick comes out clean from the center. Let it cool all the way before moving on to the next step.
04 -
Once cooled, spread a thick layer of frosting with a knife or spoon. Sprinkle with Valentine sprinkles and arrange candy hearts or M&Ms on top. Slice into squares, about 2 inches each, and serve.