Cherry bakewell cake

Name: Cherry bakewell cake
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: British, European
Ingredients: 200g butter, well softened, plus extra for greasing; 200g golden caster sugar; 100g ground almond; 100g self-raising flour; 1 tsp baking powder; ½ tsp almond extract or essence; 4 large eggs; ½ a 340g jar morello cherry conserve; 175g icing sugar; 5-6 tsp water or lemon juice; 1 tbsp ready-toasted flaked almonds