Preheat an oven to 450 degrees F (230 degrees C).

Grease a 9-inch round pan.

In a large bowl, mix together all-purpose flour, whole-wheat flour, baking powder, sugar, cream of tartar, and salt.

Add vegetable oil and butter to the flour mixture and blend until it resembles bread crumbs.

Stir in milk to form a dough.

Roll the dough into small balls, less than 1 inch in diameter.

Arrange the dough balls evenly in the prepared pan.

Drizzle vegetable oil over the dough balls.

Sprinkle chopped walnuts over the dough.

Top with fresh peach cubes.

In a small bowl, stir together maple syrup and ground cinnamon.

Drizzle the maple syrup mixture evenly over the peaches and walnuts.

Bake in the preheated oven until the edges of the dough are golden brown, about 10 to 12 minutes.

Let cool slightly before serving.