Preheat the oven to 180C/350F/Gas 4. Line a 12-hole muffin pan with muffin cases, then set aside.
Whisk together the flour, sugar, baking powder, baking soda, and salt. Set aside.
Whisk together the egg, vanilla, vegetable oil, yogurt, lemon juice and zest. Pour the wet ingredients into the dry ingredients, and mix until just combined. Gently fold in the strawberries.
Divide the batter evenly between the muffin cases, filling them almost to the top, and bake for 18 - 20 minutes, or until a toothpick inserted into the centre comes out clean with a few moist crumbs.
Allow to cool for 5 minutes in the pan, then transfer them to a wire rack to cool completely.
For the Glaze
Whisk together the icing sugar and lemon juice until smooth. Drizzle over the cooled muffins.
Notes
Muffins stay fresh in an air-tight container at room temperature for up to 5 days. They also freeze well for up to 2 months. Thaw overnight in the fridge.