public long insert() {
   ContentValues cv = new ContentValues();
   db.open();
   cv.put(KEY_NAME, name);
   cv.put(KEY_CATEGORY, category);
   cv.put(KEY_INGREDIENTS, ingredients);
   cv.put(KEY_INSTRUCTIONS, instructions);
   long id = db.insert(KEY_TABLE_NAME, cv);
   db.close();
   return id;
 }