1️⃣ Prepare the Cake:

Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour two 8-inch round cake pans for easy release.

Mix Dry Ingredients: In a large mixing bowl, combine the vanilla cake mix and orange gelatin mix.

Add Wet Ingredients: Pour in the orange juice, vegetable oil, eggs, vanilla extract, and orange zest. Beat on medium speed using a hand or stand mixer until the batter is smooth and well combined.

Bake: Divide the batter evenly between the prepared pans. Bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean.

Cool: Allow the cakes to cool in the pans for 10 minutes, then transfer to wire racks to cool completely.

2️⃣ Make the Frosting:

Whip the Butter: Beat the softened butter on high speed until light and fluffy.

Add Sugar Gradually: Gradually mix in the powdered sugar, one cup at a time, beating well after each addition. Scrape down the sides of the bowl to ensure even mixing.

Incorporate Liquid Ingredients: Add the heavy cream and orange liqueur (if using). Beat on high speed until the frosting is smooth and creamy. Adjust the consistency with more cream if necessary.

3️⃣ Assemble the Cake:

Layer the Cake: Once the cakes are fully cooled, spread a generous layer of frosting on the top of one cake. Place the second layer on top.

Frost the Cake: Spread the frosting evenly over the entire cake. Smooth for a polished look or create decorative swirls with a spatula for added texture.

4️⃣ Serve and Enjoy:

Slice the cake and serve as a delightful dessert for any occasion. Store leftovers in an airtight container in the refrigerator for up to 3 days.