In a bowl, combine flour, sugar, salt, and baking powder.
In another bowl or measuring cup, beat together egg, milk, and olive oil.
Pour the milk mixture into the flour bowl and whisk gently to incorporate everything.
Here's your batter.
Preheat oven to 375 degrees. Put muffin liners/cups in a cupcake/muffin pan. Evenly divide the batter into the muffin cups.
Crumble together the flour, sugar, butter, and powdered cinnamon.
Sprinkle evenly on top of the muffin cups.
Bake the muffins for 20 to 25 minutes. Cool for 5 minutes before serving.
