Preheat the oven to 350℉/176℃ and line a muffin tin with liners and set aside.
Combine flour, baking soda, baking powder, cornstarch, cinnamon, and salt together and set aside.
2 cups all-purpose flour, 1 tsp baking soda, 1 1/2 tsp baking powder, 2 tsps cornstarch, 1/2 tsp cinnamon, 1/4 tsp salt
In a large bowl, whisk together eggs and sugar. Then add in oil and vanilla and continue whisking until smooth.
2 large eggs, 1/2 cup oil, 3/4 cups white sugar, 1 tbsp vanilla
Whisk in cottage cheese and sour cream.
1 cup cottage cheese, 1/2 cup sour cream
Combine dry and wet ingredients until a soft muffin batter forms, then mix in sliced strawberries a few times.
1 1/2 cup strawberries*
Fill the liners to the top with the muffin batter and add extra strawberries and sprinkle white sugar on top (optional).
Bake the muffins for 21-25 minutes or until a toothpick inserted in the muffins comes out clean with no wet batter.
Allow to cool, and enjoy!