Preheat the oven to 180°C. Line a baking sheet with parchment paper.
In a bowl, mix the sugar, cinnamon and margarine until you get a paste.
Roll out the pastry, then cut out about 8 squares.
Spread the cinnamon paste on half of each, then fold the other half (which has no paste on it) on top, pressing them together.
Make a 1cm rim (guiding line) on the folded edge, using a blunt knife (don’t cut through it!). Using a sharp knife (or pizza cutter), cut lines into pastry, up to the rim.
Place a pretzel stick to one side of the rim and roll the pastry around the stick, creating a broom shape.
Put the pastries on the baking sheet, allowing enough space between them to expand.
Sprinkle some cinnamon sugar on top if liked.( Or you can brush them with a little almond milk, or egg wash for a vegetarian version, if preferred.)
Take out the pretzel sticks and cut one into small pieces. Put these back into the holes to keep them open during baking.
Bake for about 12 minutes until golden. Scatter some cinnamon sugar on top, if liked.
Let them cool, then swap the small pretzel pieces with a long stick, pushing them into the baked pastry to create broomsticks.