Mini Blueberry Muffins With Flaxseed

Ingredients

• 1¼ cups (300 mL) all-purpose flour
• 1 cup (250 mL) whole wheat flour
• ½ cup (125 mL) ground or crushed flaxseeds
• 1 tsp (5 mL) baking powder
• 1 tsp (5 mL) baking soda
• ¼ tsp (1 mL) salt
• 1/3 cup (75 mL) vegetable oil
• 1 egg
• 1 cup (250 mL) buttermilk
• ¾ cup (175 mL) brown sugar
• 2 cups (500 mL) fresh or frozen blueberries
• ½ cup (125 mL) chopped toasted walnuts
• 2 tbsp (25 mL) coarse sugar (optional)