Using a cookie cutter a little larger than your tartlet pan sections, cut 12 rounds out of the pastry.
Press each round into a tartlet section set aside.
If you haven't done so already, cook the bacon until crisp. Remove from the pan and set aside on a paper towel.
Remove excess grease from the pan leaving about a tablespoon to cook the onions in. Cook the onions until soft. Add the brown sugar, and cook on medium-low heat another 4 or 5 minutes to caramelize (being careful not to burn them).
Place 2 teaspoons of cranberry jelly into each section, followed by a teaspoon of the sautéed onions.
Remove the crust from the top of the cheese. Use a teaspoon to scoop the cheese out, place two teaspoons of cheese into each section.
Top with the bacon.
Bake about 15-20 minutes or until puff pastry is browned
Let cool 5 minutes before serving.
Video
Notes
When using frozen puff pastry, allow thawing overnight before using. This will make the pastry pliable without becoming too soft.
Flour your worktop before rolling the pastry. This helps to roll out smooth and prevent sticking or pulling.
Roll Gently - Puff pastry is delicate if use too much force, you'll lose some of the flakiness.
Don't Skip the Docking of the pastry. Docking the pastry before filling will make the edges puff up and the center will stay down.
Don't overcook the bacon. The bacon will cook more during bacon so cook just until crisp.