Brown Butter: Brown butter in a saucepan, then chill it in the fridge until solid.
Preheat Oven: Set your oven to 375°F and line a baking sheet with parchment paper.
Cream Butter and Sugars: In a mixer, beat solid brown butter with sugars on high for 3-5 minutes, until pale and creamy.
Add Eggs and Honey: Add eggs one at a time, mixing well after each, then mix in honey on medium speed.
Combine Dry Ingredients: Sift flour, baking powder, baking soda, salt, and chai spices into the wet mixture; mix just until combined.
Fold in Add-ins: Add oatmeal and chopped walnuts, mixing on low until just combined.
Fill with Pear Preserves: Scoop 4 oz. dough balls, make a well, add a teaspoon of pear preserves, pinch to seal, and place on the baking sheet.
Bake and Cool: Bake for 12-14 minutes until golden brown, then cool for 20 minutes.