Mini Cranberry Apple Pies

Name: Mini Cranberry Apple Pies
Prep time: 1 h
Total time: 1 h
Cuisine: American
Ingredients: 100 grams fresh or frozen cranberries (1 cup); 100 grams grated apple (1 medium apple, or about 1/2 cup, packed); 50 grams granulated sugar (1/4 cup); 5 grams finely minced fresh ginger (1 teaspoon); 2 grams lime zest (1 teaspoon); 2 grams finely chopped fresh rosemary (1 teaspoon); 1 sheet shortcrust pastry or pie crust; 15 grams chopped walnuts or pecans (2 tablespoons), optional; 1 egg, lightly beaten; Demerara sugar, for sprinkling