Preheat the oven to 350°F (180°C). Butter a medium-sized 12-muffin mold or garnish each cup with parchment paper.
In a bowl, mix yogurt, apple puree and baking soda. Set aside. In another bowl, mix whole wheat flour, salt and baking powder. Set aside.
In the mixer, at high speed, cream eggs, vanilla and brown sugar. Add a bit of oil. Whisk for 3 minutes or until the mixture fades. At low speed, add oat bran.
Add dry ingredients to the egg mixture and alternate with the yogurt preparation.
Add blueberries by carefully folding the paste.
With a spoon, spoon the mixture into molds and bake in the oven until a toothpick set at its center comes out clean, about 20 minutes. Transfer to a grill and cool down.
Chef’s note
160 calories, 8 g of fats, 19 g of carbohydrates, 2 g of fibers and 6 g of proteins.