Gluten Free Blueberry Tart

Name: Gluten-Free Blueberry Tart
Ingredients: For the filling; 300 grams blueberries; 85 grams sugar; 1 lime, squeezed; 1 1/2 tablespoons cornflour; 1/2 teaspoon ground cinnamon; 1/2 teaspoon salt; For the dough; 125 grams oat flour; 90 grams traditional / steel-cut oats; 60 grams sugar; 1 1/4 teaspoons salt; 90 grams unsalted butter cut in cubes and very cold