Place sausages into a large bowl and cover with boiling water. Leave for approximately 2 minutes and then remove skins. Place sausages into a large mixing bowl and add the minced beef. Thoroughly mix sausage mince and minced beef to combine well.
There is usually enough flavour in the sausages for the combined sausage mince and minced beef when making these sausage rolls for children. But if you are looking for a little additional flavour in the way of cracked pepper, mustard, curry, etc. can be added if desired.
Preheat oven to 200˚ C. Prepare 2 flat oven trays by spraying with cooking spray. Sift flour and baking powder into a medium-sized mixing bowl. Rub butter into dry ingredients until mixture resembles fine breadcrumbs. This process may be done by using an electric food processor.
Pour 100ml cold water into a small bowl and then add in the lemon juice. Add one egg yolk and then mix well together. Pour liquid into dry ingredients and mix well to form a firm dough. Turn dough out onto a lightly floured (gluten free) board and knead lightly.
Divide pastry in half and roll out one half to a rectangle approximately 30cm x 18cm x 0.5cm. Divide meat in half. Form each half into a long roll the length of the pastry. Place a roll of meat along the pastry to one side of the length of the pastry. Roll pastry over the meat to form a tight roll. Cut into 5cm lengths and place onto prepared tray. Repeat with remaining pastry and meat. Place remaining egg yolk and extra water into a bowl. Lightly beat. Use to glaze tops of sausage rolls. Place into a moderately hot oven and bake for approximately 10 minutes. Reduce heat to 190˚ C and continue to cook for an additional 10 minutes or until cooked when tested.
When cooked remove trays from oven and place sausage rolls onto a wire rack to cool.