Portuguese Custard Tarts

Yield: 12 tarts
Recipe: 114/200
“Back to Baking”, pp. 102


    Not one to waste egg yolks that I had leftover from making a Swiss buttercream, I decided to finally try making this lovely recipe for Portuguese custard tarts, also called natas here in Quebec. This recipe was actually a little bit more challenging to make. I found it quite interesting to add softened butter to the top of a rolled out pie dough to ultimately convert it to a flaky dough once baked. Pretty ingenious! This recipe is a bit more time consuming than your average cookies or tart, but I much enjoyed the process, especially rolling out the 12 littles pieces of dough individually and filling them with custard. A word to the wise, because of all the added butter, when rolling out the individual dough pieces they will become soft very quickly, so make sure that you flour the surface that you are rolling on and the you don’t overwork the dough!

    The taste of the tarts is very good and the custard itself is tasty and just right, not too eggy or creamy. However, it is evident that I did not roll out each of the 12 portions thin enough (I never know what 1/4 inch looks like and I am too lazy to take out a ruler and measure), because when baking them the dough almost doubled in size and is a bit too thick. As a result, my tarts don’t have the pretty overhangs to be expected based on the recipe and the dough-to-custard ratio is a bit too high. Nonetheless, they taste very good. If I do these again I would just make sure to roll them out thin enough so that I don’t have very thick tarts.


  • 1 recipe Double-Crust Pie Dough, wrapped in one piece and chilled
  • 5 tablespoons + 1 tablespoon unsalted butter, at room temperature
  • 1 cup half-and-half cream
  • 3/4 cup milk
  • 5 egg yolks
  • 1/2 cup sugar
  • 2 tablespoons +1 teaspoon cornstarch
  • 1 tablespoon vanilla extract


  1. Pull the dough from the fridge 30 minutes before rolling. On a lightly floured surface, roll out the entire piece of pie dough into a rectangular shape that is about 20 inches by 12 inches long (50 x 30 cm), and 1/4 inch thick.
  2. Evenly spread 5 tablespoons of the softened room temperature butter over the surface of the dough, and roll up the pastry from the short end. Wrap and chill the dough while preparing the filling.
  3. Heat the cream and milk in a pot over medium heat to just below a simmer.
  4. In a bowl, whisk together the egg yolks, sugar, cornstarch and vanilla extract.
  5. While whisking the egg mixture, slowly pour in the hot cream, then pour everything back in the pot. Whisk the custard constantly over medium heat until it thickens and just begins to bubble, about 4 minutes.
  6. Strain the custard into a bowl and stir in the remaining 1 tablespoon of butter. Place a sheet of plastic wrap directly on the surface of the custard to prevent a skin from forming. Cool the custard on the counter at room temperature, then chill for 1½ hours.
  7. Preheat the oven to 375°F and lightly grease a 12-cup muffin tin.
  8. Remove the pastry from the fridge and cut 12 discs from the log. Roll out each portion on a lightly floured surface to 1/4 inch thickness. Trim with a 5-inch round cutter and press each portion into the muffin tin so that the edges of each tart shell are about 1/2 inch above the edge of the muffin cup.
  9. Spoon the chilled custard into each pastry.
  10. Bake the tarts for 35 to 45 minutes, until the pastry is golden brown and the custard has browned on top somewhat. Cool the tarts in the tin before removing to serve at room temperature or chilled.