Preheat the oven to 350°F & grease & parchment line 3-7" cake pans
Combine the flax meal with the hot water & set aside to thicken about 5 minutes.
Add the vinegar to the plant milk & then add the vanilla extract
Now place all the cake ingredients into the work bowl of a food process & whiz smooth, scrape the bottom & sides of the bowl & whiz again for 30 secondsOr this entire recipe can be mixed by hand in a large bowl with a whisk
Divide the batter evenly amongst your cake pans & bake at 350°F for 25-30 minutes or when they are springy to the touch when you gently press the centers.
Cool completely while you make the peanut butter buttercream & fudge recipes according to the instructions on those posts
Once the cake is compositely cold assemble as shown in the picture by layering with the fudge icing & covering the cake with the peanut butter buttercream. Ganache drips & chopped peanuts optional
Notes
Be sure to read the Notes for Success section above the recipe!Storage Peanut Butter Fudge Cake can be stored at room temperature for up to 3 days. For longer storage or in very hot climates store in the refrigerator for up to 1 week. Freeze wrapped well for up to 2 months