In a container, mix the flour, powdered milk, yeast and oats.
In another container, beat the egg with the sugar. Add the vanilla extract and oil. Mix well. Add the fromage blanc and mix carefully.
Quickly blend in the dry mixture then the blueberries.
Divide the preparation into muffin moulds or trays, up to 2/3 of their height. Sprinkle lightly with sugar and a few oats.
Place in the oven for about 25 minutes.