Step 1

*You can find a step by step video on how to make this recipe above*

Step 2

Preheat your oven to 350 degrees

Step 3

In your mixing bowl cream together the butter and sugar. Your butter should be room temp and soft. The mix should be lump free, smooth and light when you're done creaming.

Step 4

Scrape down the mix on the sides and bottom of your mixing bowl.

Step 5

Add your egg and mix together until the egg is fully incorporated.

Step 6

Scrape down the batter on the sides and bottom of your mixing bowl.

Step 7

Add your cocoa powder and flour.

Step 8

Mix until combined. Make sure not to over mix.

Step 9

Shape the dough into a rectangle and wrap with cling wrap.

Step 10

Refrigerate the dough for 10 minutes.

Step 11

Cut two 24 inch pieces of parchment paper off the roll.

Step 12

Spray both pieces of parchment paper with pan spray.

Step 13

Place the dough on the greased side of one sheet and put the second sheet on top greased side down.

Step 14

Roll out your dough into a circle about 11-12 inches wide.

Step 15

Spray your tart shell with pan spray.

Step 16

Take the top sheet of parchment off and use the bottom sheet to position your dough onto the pan.

Step 17

Gently press the dough into the bottom of the pan and side.

Step 18

Use your rolling pin to roll over the edges to get a clean edge.

Step 19

With a fork poke serval tiny holes in the bottom of the dough to prevent air bubbles.

Step 20

Use a piece of parchment paper or coffee filter and pie weights or baking beans to blind bake your crust for 20 mins at 350 degrees.

Step 21

In a sauce pan combine your chocolate chips, milk, and heavy cream.

Step 22

Cook on a medium heat stirring casually until all the chocolate is melted. The overall color will also darken. Be careful not to let the chocolate on the bottom of the pan burn.

Step 23

In a separate bowl whisk one whole egg.

Step 24

While whisking add a little of the chocolate filling to the bowl at a time. Make sure you do small amounts at a time. You don't want to scramble the egg since the filling is hot.

Step 25

Your crust should be out of the oven and the blind baking weights should be removed.

Step 26

Pour the filling directly into the crust.

Step 27

Bake the tart at 350 degrees for 25 minutes.

Step 28

After it come out of the oven let it cool off for 30 minutes before placing it into the refrigerator to cool for 2 hours.

Step 29

Once its cool its ready to cut and serve!