Ingredients
Method
Preparation
- Take the vegan butter out of the fridge to soften.
- Make the vegan buttermilk by combining the plant-based milk and lemon juice, and set it aside to curdle.

- Preheat the oven to 350°F (175°C). Prepare three parchment paper rounds for three 6×2-inch (15 x 5 cm) round cake pans and line each one.
- For aquafaba, pour 1/2 cup of the liquid from a can of chickpeas into a small bowl. Beat the aquafaba at medium speed with a handheld or stand mixer until it is foamy, about 60 seconds.

Mixing
- In a medium bowl, whisk together the dry ingredients: flour, salt, baking soda, and baking powder.

- In a large bowl, cream the wet ingredients: beat the softened butter, oil, and sugar until fluffy, about 60 seconds.
- Add whipped aquafaba, vanilla extract, orange juice, and orange zest, mixing until just combined.

- Gradually add half of the dry mixture into the wet mixture, mixing on low until just combined.
- Then add the vegan buttermilk and mix until combined. Finally, add the remaining flour mixture until you have a mostly smooth batter, but avoid overmixing.

Baking
- Divide the batter equally among the prepared pans. Scatter fresh raspberries on top of each cake, but do not press them down.
- Bake for 30 minutes. The cakes are done when they puff up slightly, pull away from the pans, and a toothpick comes out with a few moist crumbs.
- Let the cakes cool in the pans for at least 30 minutes, then invert them onto a cooling rack to cool completely.
Assembly
- To assemble: If possible, refrigerate the cakes and frosting first.
- Place one cake layer on a platter, spread a thin layer of Raspberry Jam, and add 1/4 of the Tangy Buttercream Frosting.

- Add the next layer and repeat until all layers are stacked, topping with jam and frosting.
- Apply the remaining buttercream smoothly around the sides and top of the cake. You can refrigerate for 1-2 hours for the best results.
Notes
Store any leftovers in an airtight container in the fridge. Use room-temperature ingredients for better mixing. Avoid overmixing the batter to keep the cake light and fluffy. Experiment with different frostings or fruit fillings.
