100-125gblackberriesI used frozen, straight from the freezer
Icing sugar for dusting
Instructions
Melt the butter in a small saucepan over a medium heat until it starts to foam, this will take a little while. Continue to cook until it starts to smells nutty and the milk solids drop to the bottom of the pan and have turned dark brown. Pass through a sieve and leave to cool.
Mix all the remaining ingredients, with exception of the blackberries, using a balloon whisk or free standing mixer. Now add the cooled butter and mix again. Cover and refrigerate for a minimum of 2-3 hours. (This mixture will keep quite happily in the fridge for up to a week).
Preheat the oven to 170Cfan. Grease the financier mould with butter and lightly dust with flour.
Fill each mould three quarters full, then push the blackberries into the batter.
Place in the oven and bake for 12-15 minutes or until golden and cooked through. Leave to cool down before removing from the tins. Run a sharp knife around the each mould to help loosen the cakes
Serve at room temperature dusted with icing sugar.
Notes
You don't have to go to the expense of buying a financier mould, you can use a mini muffin tin, as I have.