date breakfast squares

Name: date breakfast squares
Cuisine: European, American
Ingredients: For the filling; 1 1/2 cups (8 ounces) pitted dates, chopped; 3/4 cup water; 1 teaspoon finely grated orange (or mandarin or clementine) zest; For the crumbs; 2 tablespoons packed brown sugar; 1/4 cup raw or turbinado sugar; 1/2 cup olive oil, coconut oil, melted butter or a mix of the above; 3/4 cups rolled oats, I used quick-cooking but old-fashioned should work just fine; 3/4 cup plus 2 tablespoons whole wheat flour, or a wholegrain flour mix of your choice; 1/2 teaspoon ground cinnamon; A few gratings of fresh nutmeg; A pinch or two of ground cloves; 1/4 teaspoon baking soda; 1/4 teaspoon coarse sea salt