1/2 cup (115g) unsalted butter, softened

3/4 cup (150g) sugar

1 large egg

1 teaspoon vanilla extract

1 1/2 cups (190g) all-purpose flour

1/2 teaspoon baking powder

Pinch of salt

Food coloring (green, purple, or any monster color)

Candy eyeballs (or M&Ms)

Preheat the Oven: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

Make the Cookie Dough: In a large bowl, cream together the butter and sugar until light and fluffy. Add the egg and vanilla, and mix until combined. In another bowl, whisk together the flour, baking powder, and salt. Gradually add the dry ingredients to the wet mixture and stir until a dough forms.

Add Food Coloring: Divide the dough into portions and mix in different food colorings to make bright "monster" colors (green, purple, etc.).

Shape and Bake: Roll the dough into small balls and place them on the prepared baking sheet. Lightly flatten each ball and press candy eyeballs into the dough (1 or more eyes for a monster look).

Bake: Bake for 10-12 minutes, until the edges are lightly golden. Let the cookies cool on a wire rack.

Serve: These colorful, spooky cookies with creepy eyeballs are sure to delight at any Halloween party!