Before you dive into mixing, preheat your oven to 350°F (175°C). This ensures that the cake bakes evenly.
In a large bowl, whisk together the eggs, milk, olive oil, and vanilla extract. This combination adds moisture and flavor to your cake. Ensure everything is thoroughly combined to avoid any lumps.
In another bowl, sift together the gluten-free flour, cocoa powder, baking powder, baking soda, and sea salt. Sifting helps to aerate and combine the dry ingredients properly. Plus, it prevents lumps from forming in your cake.
Gradually blend the dry ingredients into the wet mixture. Stir gently; you’re looking for a smooth batter. Pay attention to the consistency—it should be slightly runny.
Here’s where the magic happens. Carefully pour in the boiling water, stirring continuously. This technique keeps the batter silky and yields a moist cake.
Grease two 9-inch round cake pans and divide the batter evenly between them. Place the pans in your preheated oven. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
Once baked, remove the pans from the oven and let them cool on wire racks for about 10 minutes. After that, carefully take the cakes out of the pans and allow them to cool completely.
While your cakes cool, prepare the frosting. Cream the softened butter in a bowl, gradually adding in the cocoa powder and powdered sugar. Pour in the milk and vanilla, mixing until smooth and creamy. Add the chopped walnuts for an exciting crunch.
Once the cakes are completely cool, it’s time to assemble. Place one layer on a serving plate. Spread frosting generously on top, then gently place the second layer on top of the frosted layer. Finish by frosting the top and sides of the cake as desired.
Slice up your creation and serve it with your choice of toppings. Revel in the joy on your guests’ faces as they enjoy this gluten-free delight!