Coffee and walnut muffins

I've been trying to make things outside my usual repertoire, which basically is making things I like myself. I'm odd in that I don't like coffee the drink but I do like the flavour in food, so I thought the classic coffee and walnut combo would be good.

I based the recipe on my standard bun recipe, with a bit more flour to counter the added liquid. It makes 12 buns or fills 8 muffin cases.

4 1/2 oz Self raising flour

4 oz margarine

4 oz caster sugar

2 eggs

50g walnuts halves

1 tsp baking powder

2 tbsp instant coffee

1) Set the oven to 180 C and line a cupcake/muffin in with cases

2) Beat the margarine and sugar until pale and fluffy

3) Beat in the eggs one at a time

4) Mix in the flour

5) Add just enough boiling water to the coffee to make a paste and stir half of it into the main mixture

6) Crush the walnuts into small pieces with a rolling pin and stir in ***This part can be left out for those who don't like nuts***

7) Spoon into the baking cases and bake for 20 min for cupcakes or 30 min for muffins

For the decoration sieve 200g of icing sugar into a bowl. Add a little of the coffee mixture to colour the icing and add boiling water a teaspoon at a time until it makes a thick enough paste to cover the back of a spoon. Dip the cupcakes into the mixture and spread evenly. Leave to dry.

For the buttercream whip 75g of margarine with 150g of sieved icing sugar and the rest of the coffee mixture. Pipe the buttercream into rosettes and top with a piece of walnut.