The document provides instructions for making cheese and onion triangles, including a list of ingredients and equipment needed as well as step-by-step method. It calls for mixing cheddar cheese and sliced onion for the filling. The shortcrust pastry is made by rubbing butter into flour and mixing with water. The dough is rolled out, cut into quarters, filled with cheese mixture, folded over and sealed with egg wash before baking for 20 minutes.