Add the cocoa powder, coffee, vanilla, cream, milk and egg yolks to a bowl and whisk together.
Add the sugar and whisk into the mixture.
Cut the crusts off the bread and then chop into roughly 2cm (1 inch) cubes.
Add around ⅓ of the bread to a bowl that will fit into the instant pot. Now add around ⅓ of the chocolate mixture and the milk chocolate.
Continue layering and push the bread down into the chocolate sauce.
Cover the bowl with tin foil.
Add 300ml (1.5 cups) of cold water and the trivet to the instant pot. Carefully lower the bowl into the instant pot.
Put the lid on and set on high pressure for 30 minutes. leave under pressure for a further 10 minutes and then perform a quick release.
Serve and enjoy.