01 - 
                Right before you pass them around, go ahead and dust the tops with some powdered sugar.
              
              
              
                02 - 
                Gently slice those cooled pastry circles across the middle. Pile or pipe the cold custard onto the bottoms, then put the tops back on to make a little sandwich.
              
              
              
                03 - 
                Scoop the finished custard into a bowl. Lay plastic wrap straight over the top, pop it in the fridge, and chill for half an hour until it firms up.
              
              
              
                04 - 
                Keep stirring the mixture until it’s smooth, about five minutes. Take it off the heat and mix in the butter and vanilla till it melts together.
              
              
              
                05 - 
                Crack your eggs and whisk up the yolks in a different bowl. Slowly mix in a splash of the hot milk mix (so you don’t get scrambled eggs). Pour that back into the pot.
              
              
              
                06 - 
                Pour milk, sugar, salt, and cornstarch into a saucepan and mix well. Place over medium heat, stir often, and let it thicken up.
              
              
              
                07 - 
                Slice your puff pastry into rounds using a circle cutter, spread them out on your parchment-lined pan, and poke a couple of holes in each with a fork. Bake until they’re puffed and gold (about 15 to 18 minutes). Let them fully cool before you touch them.
              
              
              
                08 - 
                Fire up your oven to 400°F (about 200°C). Lay parchment paper on a baking tray and get it ready to go.