- 1 (19.9-ounce) dark chocolate cake mix, Betty Crocker®
- 11/3 cups whole milk
- 1/2 cup vegetable oil
- 3 large eggs
- 11/2 teaspoons vanilla extract
- Marshmallow Filling (recipe follows)
- Preheat oven to 350°. Line baking sheets with parchment paper.
- In a large bowl, combine cake mix, milk, oil, eggs, and vanilla. Beat at low speed with an electric mixer for 30 seconds. Increase speed to medium, and beat for 2 minutes, or until well blended. Drop batter in 1/4-cup measures onto prepared baking sheets.
- Bake at 350° for 10 minutes. Let cool on pans for 5 minutes. Carefully remove cakes from pan (cakes are fragile), and cool completely on wire racks.
- Spread Marshmallow Filling evenly on the flat side of half of the cakes, and top with remaining cake halves, flat sides down.
- Yields: About 14 servings
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