Line a 12 muffin baking pan with large muffin liners
Combine the dry ingredients, including the sugar blend in a medium bowl. So that includes the flour, baking powder, Truvia and salt. I like to use these awesome glass mixing bowls. Whisk the ingredients to make sure they are blended.
Now using your large mixing bowl, mix up the egg, milk, oil and vanilla.
Dump the dry ingredients into the large mixing bowl that has the wet ingredients.
And SLOWLY mix them together, just enough to moisten the dry ingredients. The trick is not to over stir when you are making muffins. Too much mixing and they will be really tough.
Once mixed add the blueberries.
Using a small scoop, divide the batter evenly between the 12 muffins cups.
Bake at 350F for 18 to 24 minutes (depending on your oven)