In medium bowl, whisk together the spelt flour, oats, brown sugar, salt, baking soda and cinnamon. Pour melted butter and orange juice over mixture and stir to combine. Reserve 1/2 cup of mixture (for topping) and press the remaining mixture into the bottom of an 11X7 baking dish that has been coated with cooking spray.
To prepare filling:.
Combine cranberries, sour cream, sugar and remaining ingredients in a medium bowl, stirring well. Spread cranberry mixture over prepared crust. Evenly crumble reserved topping over filling.
Bake for 40 minutes or until edges are golden. Cool completely in pan on a cooling rack before serving.