After 10 minutes, add the wanira (vanilla), huka hāura (brown sugar), huka one (caster sugar) and tote (salt) in to the pata parauri (brown butter). Whisk it all together to combine. Add both of the hēki (eggs) and whip until a smooth mixture forms.
Add the puehu parāoa noa (flour) and fold together with until thick.
Remove 1 ¼ cups of the mixture and add it to a seperate bowl. Stir through ¼ cup of kōkō (cocoa) in to one of the mixtures. Add to the pouaka makariri (refrigerator). To the remaining mixture, add ¼ cup of puehu parāoa anō (extra plain flour) and pēkana paura (baking powder). Stir it through and add to the pouaka makariri (refrigerator).Leave the two flavours in the pouaka makariri (refrigerator) for 10 minutes. This will thicken the mixture. Once chilled, remove each dough and roughly roll in to 20 small balls. You will end up with 20 vanilla flavoured and 20 chocolate flavoured.
Line two large baking trays with baking paper.
Add a piece of the pokenga tiakarete (chocolate dough) on to the tray and flatten it with your fingers. Add 2 small pieces of the hēki māngohe (marshmallow egg) and 3-5 pieces of the hēki karamea (caramel eggs) on top, in a pile. Note: Don't add too much marshmallow in the inside of the cookie as it makes for an exploding biscuit. If you are using it, add the blob of pata pīnati (peanut butter) on top.
Flatten out the pokenga wanira (vanilla dough) with your hands and drape it over the tiakarete (chocolate). Press around the edge to seal it.
Continue this pattern until you get ten pihikete (biscuits) on the tray. Add the tray and the pihikete (biscuits) to the pouaka makariri (refrigerator). Chill for 20 minutes or up to a few days. See the note below. Repeat this process with the remaining dough, adding ten more pihikete (biscuits) on to the tray. Chill for 20 minutes before baking.
When the biscuits have chilled for 20 minutes, bake for 15 minutes in total.
If you want the marshmallow drama on the top like I have done, place the frozen large strips of māngohe (marshmallow) on top once the pihikete (biscuits) have been baking for 10 minutes. Then bake for 5 more minutes.
Pre-heat the oven to 170 °C.
Once baked, remove from them from the oven and give them 10 minutes to cool before enjoying with a nice cup of miraka (milk) or kawhe (coffee).