Preheat the oven to 350°F.
Add 1½ sticks of the butter to a saucepan set over medium heat, cooking until the butter begins to brown, about 3-4 minutes. Remove from the heat and pour the butter into a small, heatproof bowl. Chill the butter in the freezer for 5-10 minutes.
In a large bowl (or stand mixer), beat the remaining room temperature butter on medium speed until whipped, about one minute. Add in the cooled brown butter, brown sugar and vanilla and beat until combined, another 30 seconds.
1 tsp vanilla extract, 1 cup brown sugar, 1 cup unsalted butter
Then add in the maple syrup, apple butter and egg and beat until combined. Add the all purpose flour, almond flour, baking soda, cinnamon, nutmeg and salt. Fold in the pecans.
1⅔ cups all purpose flour, ⅔ cups almond flour, ¼ cup maple syrup, ¼ cup apple butter, 1 egg, 1 tsp baking soda, 2 tsp cinnamon, 1 tsp nutmeg, ½ tsp salt, ⅓ cup pecans
Line a baking sheet with parchment paper. Roll the dough into tablespoon size balls, and space them out at least 2-3 inches apart on a sheet pan. You can fit 6-8 cookies per pan.
Bake the cookies for 8 minutes, and then remove them from the oven. Bang them on the counter a couple times to flatten them out, and then return them to the oven for 2 more minutes. Remove them from the oven, bang the pan once more and let cool. Move the cookies to a wire cooling wrack if you'd like.