Preheat your oven to 190°C (375°F) and line a muffin tin with paper liners or grease it well.
In a large mixing bowl, whisk together the flour, sugar, and baking powder until evenly combined. The mixture will be slightly lumpy but well aerated.
In a separate bowl, melt the butter, then whisk in the eggs, milk, and vanilla until smooth and slightly frothy.
Pour the wet mixture into the dry ingredients and gently fold with a spatula until just combined. Be careful not to overmix; some lumps are okay.
Lightly toss the frozen strawberries in a tablespoon of flour, then gently fold them into the batter. This helps keep the berries evenly distributed and prevents sinking.
Using a muffin scoop or spoon, portion the batter into the prepared muffin cups, filling each about 3/4 full. The batter should mound slightly over the rim.
Bake in the preheated oven for 20-25 minutes, or until the tops are golden brown and a toothpick inserted into the center comes out clean. The muffins will crack on top and smell fragrant.
Remove the muffins from the oven and let them cool in the tin for about 5 minutes until slightly firm. Then transfer to a wire rack to cool completely or serve warm.
Enjoy these moist, juicy strawberry muffins warm or at room temperature, perhaps with a pat of butter or a dusting of powdered sugar for extra indulgence.