Step 1 of 7

Prepare your streusel mixture by combining flour, cold butter cubes, and brown sugar. Use your hand to crumble it until it forms clumps and crumbs. Keep chilled.

Step 2 of 7

Then, preheat the oven to 180°C and line cupcake pans with liners.

Step 3 of 7

Next, mix together flour, castor sugar, baking powder, and salt in a bowl. In a separate bowl, whisk together the eggs, milk, vegetable oil, and vanilla extract.

Step 4 of 7

Slice strawberries and mix strawberries into the liquid mixture. Incorporate dry ingredients into the liquid mixture.

Step 5 of 7

Carefully mix it together and avoid overmixing. Scoop the batter into the prepared cupcake liners. It should fill each liner about ⅔ full.

Step 6 of 7

Top each cupcake with streusel crumble and bake for 17-20 minutes.

Step 7 of 7

Let cool once baked, and enjoy!