Take butter out of the fridge and let it soften. It should be soft but not melted. This helps create smooth frosting without lumps.

Place butter in a bowl and beat using a mixer. Mix until it becomes light and creamy. This step adds air and makes frosting fluffy.

Add powdered sugar slowly while mixing. Do not add all at once. This helps avoid lumps and keeps the mixture smooth.

Pour in milk and vanilla extract. Mix again until smooth. The frosting should look creamy and easy to spread.

If frosting is too thick, add a little more milk. If too thin, add more powdered sugar. Adjust until perfect consistency.

Add a small pinch of salt. This balances the sweetness and improves flavor.

Beat the frosting again for 1–2 minutes. This makes it light and airy.

Use frosting immediately on cakes or cupcakes. You can also store it for later use.