Definitely DO NOT USE PUFF PASTRY for dan tart.
Can you tell us what the end result was? I'm guessing that a puff pastry-like dough must be used in order to get a flaky layered result but that the pastry must be blind baked before the filling is added.

The frozen puffed pastry looked right around the edges, but when you bite into it, it is chewy like a danish.
With the first dozen, the instructions said to bake at 350F until the edges (brushed with egg yolk) are golden. Then cover the tarts up with a cookie sheet , turn off the oven and cook until the custard set.
The last 2 dozens were baked at 300F for 45 minutes. The pastry was flaky in that it was like shortbread cookies...but not the layered look of the classic dan tart.
Kris's pastry looks good.
IF I ever make them again, I will roll the pastry out thicker and be brave and add more filling. Helen's recipe looks interesting.
Did I really say
I won't be making these again anytime soon,
Well, Helen DID give a recipe.
Not sure about the food colouring. A dab of orange colour might be good. Yellow makes it too lemony. I liked the natural colour of the second recipe with the milk and cream.