Preheat the oven to 375 F. Line mini muffin pan with liners.
Mix together wheat flour, flaxseed meal, baking powder, baking soda, salt in a bowl and keep aside.
In another large bowl, stir together brown sugar and olive oil until sugar blends in to oil.
Add egg and mix it well.
Add vanilla extract, yogurt and milk, and mix until the mixture is smooth.
Add the dry ingredients to liquid ingredients and mix until the ingredients are well blended.
Fold in blueberries rolled in flour.
Pour the batter into muffin pan.
In a bowl mix the topping ingredients and sprinkle on top of each muffin.
Bake in a preheated oven for 18 – 20 minutes, until a tooth pick inserted in the center of a muffin comes out clean. Mine were done in 18 minutes. If using regular muffin pan, bake for 20-22 minutes.
Let the muffins cool and store in an air tight container.