Preheat your oven to 350°F (175°C). In a mixing bowl, combine the brownie mix with the required water, oil, and eggs, according to the package instructions.

Grease your egg-shaped silicone molds with nonstick spray. Fill each cavity with the brownie batter, making sure to leave some space for the brownies to rise.

Place the filled molds in the preheated oven and bake for 24 to 26 minutes. Check for doneness with a toothpick.

Once cooled for about 10 minutes, create a divot in the center of each brownie using a 1/2 teaspoon.

In a mixing bowl, beat together the softened cream cheese and marshmallow cream until smooth and creamy.

Transfer the cream cheese filling into a pastry bag and fill each divot in the cooled brownie eggs.

Refrigerate your completed deviled brownies until it's time to serve.