Heat treat your flour. Preheat your oven to 350 F/ 175 C and spread the flour for the cookie dough evenly on a baking sheet. Bake for 5-10 minutes. Cool completely.
In a stand mixer with the whisk attachment, add butter and sugars, beat until fluffy and pale, about 3-4 minutes on medium-high speed. Add the vanilla and mix again.
Reduce the speed and slowly add in the flour, nutmeg and salt. Mix until just combined. Add in the milk and mix again.
Fold in your chocolate chips
Use a ½ tbsp to scoop out your dough into balls, it should make 20 cookie dough bites. Place them on parchment paper on a tray and let them firm up in the fridge for at least 10 minutes.
While the bites are chilling, melt your chocolate. Place it in a bowl and microwave it in 10 second increments, making sure to stir well after every 10 seconds so it doesn't burn.
Dip each bite into the melted chocolate and use a fork to scoop it out. Let the melted chocolate run off each bite, then place it back on the tray. Sprinkle with flaky salt. Place the tray back in the fridge for another 15 minutes until the chocolate has hardened.