Preheat the oven to 180C. Grease a 20cm tin with butter.
Cut the cherries into quarters. Set aside five of the quartered cherries for the decoration later. Put the rest of the quartered cherries in a sieve and rinse under running water. Drain well then dry thoroughly on kitchen paper and toss in two tablespoons of the flour.
Measure all the remaining ingredients into a large bowl and beat well for two minutes to mix thoroughly. Lightly fold in the cherries. Turn into the prepared tin.
Bake in the preheated oven for 35-40 minutes until well risen, golden-brown and a skewer inserted into the centre comes out clean. Leave to cool in the tin for 10 minutes then turn out and cool on a wire rack.
For the icing, mix the icing sugar together with the lemon juice to a thick paste. Drizzle over the cooled cake using the back of a spoon, sprinkle over the toasted almonds and reserved cherries.