Easy...almost like butter frosting...
Put butter in bowl, allow to soften.
Whip with electric beaters till light and fluffy and pale.
Add sifted icing sugar to taste. Allow half a cup sugar to one cup of butter. You can also use honey, maple syrup and golden syrup.
Add any of the following...
Cinnamon
Citrus zest
Frozen crumbled raspberries and crushed meringues
Desiccated coconut
Nutmeg
Crushed peppermint candy canes
Crushed mini M & M's
Flavoured essences like rum, orange, strawberry, peppermint, lemon and so on
Crushed cookies or chocolate biscuits (Tim Tam butter on your pancakes anyone?)
Any poached and pureed fruit
Mashed banana and caramel topping
You get the idea ;-)
I'm doing some today so will share a photo soon...x