Preheat oven to 325°F and line a 9" x 9" cake pan with parchment paper.
In a medium size bowl, sift flour, baking powder, salt, nutmeg, and cinnamon together. Set aside.
In a large bowl (stand mixer works best) cream butter and sugar together. Add vanilla extract and eggs. Once well incorporated, add flour mixture. Once all the ingredients are well mixed and form a dough, add raisins, walnuts, and cinnamon chips.
Press dough baking pan until it's spread into an even layer. Bake for 35 minutes, then let cool for 3 hours. Slice into individual cookies and spread out on a large baking sheet. Bake for an additional 10-12 minutes at 325°F. Let cool and enjoy!
Notes
Want to make a half batch? No worries! A loaf pan is the perfect size to accommodate this amount of dough. Just reduce cooking time on the first baking to 30-32 minutes.