Preheat your oven to 350 degrees F.
Spray cookie sheet (or sheets depending on the size of yours) with non stick spray, then line with parchment paper and spray again. Set aside.
Place a small sauce pot of water on the stove and bring to a simmer.
In your stand mixer whisk together the eggs, sugar, vanilla, and melted butter for 1 to 2 minutes, mixture should be combined well.
Transfer mixture to a glass bowl and place over the simmering water on the stove (set aside the mixing bowl as you'll need it again).
Add the food colouring to the bowl. (Remember the colour isn't going to be dark yet, it will look pink until you add the dry ingredients later. The cocoa is what turns it dark red.)
Whisk while cooking until the sugar dissolves.
Transfer the mixture to the mixing bowl again and place back on the stand mixer.
Now whisk until light and fluffy, this should take about 6 minutes.
In a medium sized bowl whisk together the flour, cocoa powder, baking powder and salt.
Add the flour mixture slowly to the mixer and only allow it to mix long enough to incorporate the dry ingredients.
If using one big cookie sheet (I have one of those massive ones, if yours are small use two) pour it all on the sheet and smooth it out. If using two sheets divide the dough and spread evenly over both cookie sheets.
Place sheet, or sheets, in oven and bake for about 12 to 14 minutes.
Allow to cool and break into small pieces for the parfaits.Set aside.