Preheat the oven to 350°F & grease & line your cake pans with parchment paper
Combine the flax meal with the hot water & let stand to thicken
Add the vinegar to the plant milk with the vanilla extract
Sift the flour with the baking powder & salt set aside
Cream the vegan butter with the sugar until light & fluffy (this may take about 3-5 minutes on medium to high speed)Be sure to scrape the bottom & sides of the bowl to ensure an even mix
Add the flax paste while continuing to mix on medium speed then whip on high speed for 10 seconds to emulsify
Now add about 1/3 of the flour to the creamed mixture while mixing on low speed just until combined, then add half of the milk mixture
Add another 1/3 of the flour & then the remaining milk, then the last amount of flour ~mix just to combine evenly.
Divide the batter evenly amongst the prepared cake pans & bake for approximately 25-30 minutes or until they are springy to the touch when you gently press the centers.Be aware that this cake recipe will not dome or rise very much! I make 3-7" layers that end up being just a tad higher than 1" each!
Once the cakes are baked & cooled fill & ice with your favorite combinations!
Notes
Be sure to read all the notes for success above the recipe Storage Filling & icing will determine how to store this cake, but for the simple buttercream filled & ice version as I have here it can be stored at room temperature for up to 3 days. Longer storage~ refrigerate for up to 1 week or freeze wrapped well for up to 1 month