Peanut butter and banana pancakes

For the pancakes:

350g plain flour

2 tsp caster sugar

1 tsp baking powder

4 eggs

500ml buttermilk

2 ripe bananas

80ml smooth peanut butter

Butter, to cook

For the peanut butter crème fraiche:

80ml crème fraiche

2 tsp smooth peanut butter

1 tsp icing sugar

To serve:

3 ripe bananas

Parma ham or streaky bacon

Some toasted unsalted peanuts or flaked almonds