Step 1: Prep Like a Pro

Preheat your oven to 350°F and grease a springform pan. Think of this step as setting the stage for your culinary masterpiece. A greased pan ensures your cake slides out effortlessly—no stuck edges here!

Step 2: Mix It Up

In a stand mixer, cream together the butter and sugar until they’re light and fluffy. Add the eggs and vanilla, mixing until smooth. In another bowl, whisk together the dry ingredients (flour, salt, baking powder, baking soda, and cornstarch). Gradually mix the dry ingredients into the wet mixture until a dough forms. Fold in those colorful M&Ms, Cadbury Eggs, and sprinkles.

Pro Tip: Don’t overmix! You want the dough to hold its texture without becoming tough.

Step 3: Bake to Perfection

Press the dough evenly into your prepared pan using a rubber spatula. Pop it in the oven for 20-25 minutes, or until the top turns a golden brown. Keep an eye on it—overbaking is the enemy of softness! Once done, let it cool completely before moving on to the frosting.

Step 4: Frost and Decorate

While your cookie cake cools, whip up the frosting. Beat the butter, powdered sugar, vanilla, and heavy cream until it’s thick and pipeable. Scoop it into a piping bag and frost the edges of the cake. Top it off with extra sprinkles for that extra pop of Easter cheer.