Preheat your oven to 350°F (175°C).
Melt butter in a pan over medium heat until you see brown specks, then pour into a bowl.
Add flour, brown sugar, and pumpkin puree, and mix until combined.
Mix in the eggs and vanilla extract.
In another bowl, whisk together flour, salt, baking soda, cinnamon, ginger, and freshly grated nutmeg.
Combine the dry ingredients with the butter mixture, then mix in oats and both types of chocolate chips.
Wrap the dough in plastic wrap and let it rest.
Shape into bite-sized rounds, place on a parchment-lined baking tray, and bake until golden.
Sprinkle sea salt flakes on top while warm, then enjoy!