Prepare your ramekins or tins by brushing them with a flavourless vegetable oil then dusting with cocoa powder.
Cream together the non-dairy butter and caster sugar until pale and creamy. Add in the mashed banana and maple syrup and beat well.
Melt the dark chocolate in the microwave or over a bain marie. Pour into the wet cake ingredients along with the plant milk and stir until well combined.
Place 4 teaspoon of the mixture on to a small plate and place in the freezer for 30 minutes or until they are just starting to firm up.
Pre-heat the oven to 180C / 356F / gas mark 4.
Next fold in the flour, cocoa powder, salt and vanilla paste to the remaining cake mixture.
Half fill each of the ramekins / tins with the cake mix.
Place the almost frozen cake mix into the centre of each ramekin / tin.
Cover over with the remaining cake mix.
Put the ramekins / tins in the oven and bake for 12 - 15 minutes or until the tops look set but when the pan is shaken gently they have a slight wobble to them.
Remove them from the oven and give them a minute or two to cool slightly. Run a spatula round the edge of the pan and turn them out on to the plate.
Serve with your choice of plant based ice cream or pouring cream and fresh fruit.