Sent in by Denise Hale, Cheltenham
 Forewarn your oven to 180 C, Gas mark 4 Waltz a piece of butter around a 9 inch, round cake tin. Mines a heavy based tin from the Elizabeth David range. Ligne the inside of the tin with unbleached baking parchment. Aerate your flour with the bicarbonate of soda, baking powder and salt, using a metal sieve, into a medium-sized mixing bowl. Introduce the brown sugar, walnuts and eggs into the bowl. In a separate bowl crush your bananas using a four-prong fork. Introduce to bowl with carrots and oil. Entice together with wooden spoon, enticing for a whole minute in order to procure a soft cake batter. Pour into awaiting cake tin and ensure surface level. Place in centre of forewarned oven and furnace for an hour. Allow to relax for 5 minutes, then tip, gently, onto wire cooling rack. Leave alone to completely cool down.
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