Grease one 23cm round sandwich tin and line the base of the cake tin with baking parchment. (or choose from the other options in the notes and adjust baking times)
Whisk the oil, aquafaba, spices and sugar until the mixture is well combined, lighter, and noticeably thickened.
150 ml sunflower oil, 220 ml Aquafaba, 225 g light brown sugar, 1 teaspoon all spice, 1 teaspoon cinnamon, 1 teaspoon ground ginger
Stir in the flour, baking powder and gently stir until there are no lumps and you have a smooth batter.
300 g plain flour, 3 teaspoon baking powder
Gently fold the carrot into the cake batter, and add the nuts or pumpkin seeds if using.
200 g carrots, 75 g pumpkin seeds
Spread the cake batter out into the prepared tin.
Pop in the oven and bake for 35-40 mins. (OR check the baking times in the notes if using a different tin and adjust)
Test with a skewer to see if it is cooked through. If it comes out nearly clean, it's ready to take out of the oven. If it comes out a little gooey, leave the cake in for another 5 min.
Cool the cake in it's tin for 10 mins, then turn out onto a cake rack.
Let it cool completely before frosting or icing the cake.
Notes
This cake keeps well for at least 5 days in an airtight container. Probably longer but it was gone before I could test it!BAKING TIMES: This carrot cake can be made in various size baking tins: Each needs a slightly different baking time and may vary according to your oven. Test with a skewer or piece of spaghetti. If it comes out nearly clean, it's ready.
Single layer 23cm/ 9" tin: 35-40 minutes
Double Layer: 2 x 20cm/8 inch tins: 25-30 minutes Be sure to divide the cake batter evenly between them (I like to use my scales).. Switch the cakes around on the shelf half way through baking so they bake evenly.
Single Layer Sheet Cake: 32cm x 22cm / 13 x 8 inch: 25 - 30 minutes
Cupcakes/Muffins: 12 tin muffin tin: 20-25 minutes
For all the cakes: Remove from the oven when still ever so slightly damp in the middle and leave to cool in the tin. Once completely cooled you can choose to frost the cake, or just eat as it is.