Step 1: set oven to 220’c
Step 2: grease and line a shallow swiss roll tin 9 by 12 inches. take eggs at room temperature and whisk with sugar until mixture is light and creamy and leaves a trail when a whisk is lifted out of the mixture. fold in flour, using a metal spoon.
Step 3: turn into prepared tin and smooth level with a palette knife. bake in a hot oven for 7-10 mins until
Step 4: sponge begins to shrink form edges of the tin and is pale golden.
Step 5: turn out on to a sheet of greaseproof paper dredged with castor sugar. trim edges of sponge, spread with warmed jam and roll up tightly. dredge with castor sugar and cool on a wire tray.