Gather the ingredients.
Preheat the oven to 400 F / 200 C / Gas Mark 6. Choose a muffin or bun tin for the size of the tart you want. (We used a standard 12-cup tin.)
Dust a work surface lightly with a little flour and roll out 2/3 of the pastry to 1/8 inch thick. Cut circles to line the cups of your tin; don't worry if the pastry doesn't come to the very top.
Fill the pastry-lined tins 2/3 full with mincemeat.
Roll out the remaining pastry to the same thickness and cut smaller circles to fit as lids on the tarts or, to be decorative, cut stars or other fancy shapes.
Dampen the edges of the tart bases with a little cold water and press the lids on. Make a small hole in the surface of each pie with a small sharp knife to allow the steam to escape.
Bake in the preheated oven for 20 minutes (15 minutes if making canapé-sized ones), or until golden brown.
Let cool and sprinkle with the confectioners' sugar.
Serve and enjoy.