Preheat oven to 400°F. Lightly spray cookie sheet with nonstick cooking spray.
In a large bowl, combine flour, oats, 1/4 cup sugar and baking powder. Add butter and mix until the dough is crumbly.
Stir in egg, raisins and milk. Knead for a few minutes until all ingredients are moistened.
Turn dough onto cookie sheet and spread to form 8 to 10-inch circle. With a butter knife, cut circle into 8 triangles. Sprinkle with 1 Tbsp. sugar and cinnamon.