First make the cake by combining the egg replacer with the water & whisk smooth, add the vanilla extract
Cream the vegan butter with the sugar on medium to high speed until light & fluffy, about 5 minutes.
Meanwhile sift the flour with the baking powder, spices & salt
Add the vegan egg mixture to the creamed mixture & mix smooth, then whip on high speed for 10 seconds to emulsify
Add the sifted flour mixture while mixing on low speed until combined then add the mashed banana puree & mix smooth
Scoop the batter into the cupcake molds & bake in the preheated 350F oven for approximately 25- 30 minutes for the jumbo size (less time for standard cupcakes) or until they are springy to the touch when you gently press the centers.
Cool completely while you prepare the caramel
In a medium heavy bottom sauce pot cook the sugar with the lemon juice stirring to help dissolve the sugar but then stop stirring once it starts to boil, place a lid over top just to create steam & help any sugar crystals dissolve.
Once the caramel starts to turn amber, watch it closely as it can go from light amber to burnt in an instant!
Turn off the heat. let it settle down for a moment then add the vegan butter & the room temperature plant milk very carefully & gently stir with a wooden spoon
Next prepare the buttercream recipe of your choice as per the instructions on that recipe post
At the last stage of mixing add in ½ cup of the reserved COOLED caramel sauce from above recipe & then the optional rum extract
Next melt the vegan butter with 1 Tablespoon of the brown sugar in a heavy bottom saute pan
Add the sliced bananas & fry until they are browned then flip them over to cook the other side, sprinkle the other 1 Tbs brown sugar over top and cook until starting to caramelize.
Deglaze the pan with 2 Tbs rum *optional
Transfer to a tray to cool
Now you can assemble the cupcakes as shown in the video tutorial.
Video
Notes
Storage Cupcakes will stay fresh for up to 4 days at room temperature but the fresh banana topping should be added ala minute to prevent browning & oxidation