Difference between mantecado and polvorón The mantecados may or may not contain almonds, ground, chopped or whole. Polvorones always contain almonds in their composition. In mantecado the wheat and almond flours (if any) are not toasted. The sugar used is granillo and egg or egg whites are also commonly used. On the other hand, in powders the flours, both wheat and almond, must always be roasted before processing. Sugar is icing and does not contain eggs or whites in its composition. These characteristics are what makes the powder crumble when we touch it and when we squeeze it with our hands it amalgamates again.