Warm butter at room temp until soft. Cream butter by mixing with sugar first, and then add remaining ingredients. Shape into half balls using 1/2 teaspoon measure. Lightly press into sugar.
At this point, cookies can be left in the refrigerator for later baking or cooked immediately.
To bake cookies: heat oven to 150 C (300 F). Cook until lightly browned on bottoms.
