Beat butter and sugar with a mixer until fluffy and light.
Add eggs one by one and beat until well incorporated.
Add vanilla, beat a while then add milk.
The last ingredient is flour: sift the flour along with the baking powder and add it to the dough. Mix by mixer until smooth.
Preheat a waffle iron.
Bake according to the machine instructions. My waffle iron bakes waffles in 4-6 minutes. The exact baking time depends on your device. Serve with dark syrup and ice cream.