Line the muffin tin with liners. Slice the strawberries into small pieces and set aside.
1 1/2 cups fresh strawberries
In a small bowl, add the flour, baking powder, and cinnamon. Stir together and set aside.
2 1/4 cups all-purpose flour, 3 tsp baking powder, 1/2 tsp cinnamon
In a large bowl, add the eggs, white sugar, oil, milk, and vanilla. Whisk for 2-3 minutes until well combined.
3/4 cups white sugar, 2/3 cups oil, 2 large eggs, 3/4 cups milk, 1 tbsp vanilla
Add the dry and wet ingredients together until a soft muffin batter forms. Don't over-mix!
In the bowl with the sliced strawberries, add 1 tbsp of flour. Mix around to evenly coat the berries. Then add into the batter and stir to combine. Don't over-mix! Allow the batter to rest for 15 minutes.
Preheat the oven to 400℉/205℃. Scoop the batter into the prepared liners and top with extra strawberry slices and white sugar (optional, but recommended).
Bake the muffins at 400℉ for 5 minutes, then lower the oven to 375℉ and continue baking for 20-25 minutes. Every oven is different, so begin checking with a toothpick after the 15 minute mark. A toothpick inserted in the middle will come out clean when they are ready. Mine took 26 minutes total.