Preheat the oven to 180°C and line a muffin tray with paper liners. This ensures your cupcakes bake evenly and are easy to remove after baking.

In a large bowl, mix 200g flour, 120g sugar, 1 tsp baking powder, and a pinch of salt. Whisk to combine all dry ingredients thoroughly

In a separate bowl, whisk together 120ml milk, 100g melted butter, 2 eggs, and 1 tsp vanilla extract. Combine until smooth and well-mixed.

Add the wet ingredients to the dry ingredients and mix just until a smooth batter forms. Be careful not to overmix, as this keeps the cupcakes light and fluffy.

Gently fold in 100g of M&M's, reserving a few for decoration. Distribute the batter evenly among the cupcake liners, filling each about 2/3 full. Sprinkle the remaining M&M's on top for a colourful finish.

Bake the cupcakes in the preheated oven for about 20 minutes, until a toothpick comes out clean. Remove from oven and cool completely before serving. Enjoy your colourful and delicious M&M cupcakes!