Preheat the oven to 350ºF. Place the sliced pears into a large mixing bowl and toss with the lemon juice.
In a medium bowl, combine the brown sugar, cornstarch, spices, and salt. Add this mixture to the pears, and stir to coat evenly.
Place the butter in a large pot, and melt over medium-low heat. As the butter melts, it’ll start to foam, then turn a clear golden color. Continue to stir the butter, scraping up any browned specks from the bottom of the pan as it starts to brown. It should have a nutty aroma. Once browned and nutty, add the pear mixture.
Turn the heat up to medium-high, stirring the pears occasionally. After about 10-15 minutes, the pears will have softened slightly, and the juices will have thickened.
Transfer the filling to an 8-inch square baking dish. Drizzle the warmed cookie butter evenly over the pears.
Evenly crumble the crisp topping over the pear filling. Bake for 40-45 minutes, or until bubbly and golden brown on top.
Allow the crisp to cool for at least 30 minutes before serving. Leftover crisp can be stored covered in the refrigerator for up to 5 days.