In another bowl, cream the butter and sugar using an electric mixer. Add the egg and beat until smooth. With the mixer on low, add the dry ingredients, alternating with the milk and vanilla. Using an ice cream scoop, drop about 9 balls of dough, about 45 ml (3 tablespoons) each, into the syrup mixture. Bake until a toothpick inserted in the centre of a ball comes out clean, about 40 minutes.