Egg whites
6 large (Whisk lightly)
Whole milk
1 1/2 cups, divided (Measure out 1/4 cup for mixing and the remainder for batter)
Vanilla extract
1 tablespoon (Add to egg white mixture)
Cake flour
2 1/4 cups (Measure)
All-purpose flour
2 1/4 cups (Measure)
Sugar
2 1/4 cups (Measure)
Baking powder
2 tablespoons (Measure)
Kosher salt
1/2 teaspoon (Measure)
Unsalted butter
1 cup (At room temperature, cubed)
Unsalted butter
2 tablespoons (At room temperature, for meringue)
Gel paste food coloring (Electric Green, Orange, Royal Purple)
As needed (Use to tint the batter)
Sugar
1 cup (For meringue)
Sugar
2 tablespoons (For meringue)
Kosher salt
1 pinch (For meringue)
Unsalted butter
1 lb (At room temperature, for frosting)
Vanilla extract
1 1/2 teaspoons (For frosting)
Heavy cream
4 ounces (To make ganache)
White chocolate
8 ounces (Finely chopped for ganache)
Malted milk balls
1/2 cup (Chopped, for filling)
Miniature peanut butter cups
1/2 cup (Chopped, for filling)
Red candy-coated chocolate candies
1/2 cup (Chopped, for filling)
Assorted red candy sprinkles
For decoration (Scatter on layers)
Gummy worms
As needed (For serving)
Crushed chocolate sandwich cookie crumbs
As needed (For serving)