01 -
Generously grease each cavity of a mini bundt pan with unsalted butter, ensuring all ridges are coated. Dust with flour to cover all surfaces, then tap out excess. Chill prepared pan in refrigerator to facilitate easier cake release.
02 -
Combine cake mix, eggs, vegetable oil, water, and vanilla extract in a large bowl. Using an electric mixer, beat on medium speed for 2–3 minutes, scraping bowl as needed, until smooth and slightly aerated.
03 -
Divide batter evenly among prepared mini bundt pan cavities, filling each two-thirds full. Smooth tops with a spatula. Bake in a preheated oven at 350°F (177°C) for 18–24 minutes. Begin checking for doneness 5–7 minutes before suggested time; cakes are ready when edges pull slightly from pan and centers are springy.
04 -
Allow cakes to cool in pan for 10 minutes. Invert onto a wire rack and cool completely. Use a serrated knife to trim and level bases of each cake for stable presentation.
05 -
Using a small spoon, gently scoop out the center core of each cake from the base, keeping the outer ring intact. Fill cavities with assorted Easter candies, ensuring the surprise is fully hidden.
06 -
Whisk confectioners' sugar, milk, and vanilla extract in a medium bowl until glaze is smooth and pourable. Adjust consistency by adding milk a few drops at a time. Divide glaze into small bowls and tint with gel food coloring to achieve desired pastel shades.
07 -
Pour or drizzle colored glaze over cooled cakes, using a piping bag or spoon for precision around bundt ridges. Keep center holes clear for the surprise effect. Let glaze set for 15–20 minutes.
08 -
Adorn glazed cakes with decorative candies or sprinkles on top. Place each cake upright to conceal the hidden center. Serve at room temperature for the full surprise reveal.