Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius). Grease and flour a baking pan (8×8 works well).

Prepare the cake mix according to the package instructions, or use your favorite homemade vanilla cake recipe.

Pour the batter into the prepared pan and bake for 20-25 minutes, or until a toothpick comes out clean. Let the cake cool completely.

Once cool, crumble the cake into small pieces using your hands or a fork. Place the crumbs into a large bowl.

Add the melted butter, milk, and vanilla extract. Mix until the crumbs come together into a dough-like texture.

Roll the mixture into small bite-sized balls, about 1 inch in diameter. Arrange them on a lined baking sheet or tray and chill in the fridge for 30 minutes to set.

In a small bowl, whisk together the powdered sugar, milk, and vanilla extract until smooth. Divide the glaze into separate bowls, one for each color.

Add a few drops of food coloring to each bowl (black, purple, and blue) to create a galaxy effect. If desired, add edible glitter for a shimmering touch.

Dip each cake bite into the galaxy glaze, coating them completely. Let the excess glaze drip off and place the coated bites back onto the tray.

Allow the glaze to set for a few minutes. Once set, sprinkle each bite with star-shaped sprinkles or edible stars.