Preheat the oven to 200C/400F/Gas 6.
To make the blueberry sauce, melt the butter in a small ovenproof frying pan over a medium heat. Add the blueberries and cook for 2-3 minutes.
Meanwhile, place the butter and sugar into a food processor and blend together.
Add the flour and eggs and continue blending to form a sticky batter.
Add the mixture to the pan containing the blueberries to cover the blueberries, then place the pan into the oven for 15 minutes.
To serve, turn out the pudding onto a warm plate and drizzle over the cream.