Roughly chop the nuts. Cut baguette into 12 slices. Peel garlic and cut in half. Wash sage, dab dry and chop finely. Clean and wash spring onions and cut into fine rings. Dice bacon finely. Pear wash, quarter, core and likewise finely dice.
Heat 3 tablespoons of oil bit by bit in a large frying pan. Fry baguette slices with garlic in hot oil in portions on both sides until crispy. Take them out and let them drip off on kitchen paper.
Heat 2 tablespoons of oil in the frying fat. Fry nuts, bacon and pear in it. Add spring onions and sage and steam briefly. Season with pepper.
Cheese crumbles. Spread the pear and bacon mix over the crostini, add Roquefort and sprinkle with some sea salt.