Preheat oven to 325°F. Line a 9x9 inch metal baking pan with parchment paper, leaving overhang on two sides for easy removal.
In a medium bowl, whisk together 1.5 cups almond flour, 0.25 cup powdered sweetener, and 0.25 teaspoon salt. Stir in 0.25 cup melted butter until mixture clumps together.
Press crust mixture firmly and evenly into prepared pan. Use bottom of measuring cup to compact thoroughly. Bake for 10-12 minutes until edges just begin to brown.
Remove crust and let cool at least 15 minutes to firm up. This prevents toppings from sliding.
Sprinkle 0.5 cup shredded coconut over cooled crust, followed by 0.5 cup chopped pecans. Distribute 0.33 cup chocolate chips and 0.25 cup butterscotch chips evenly.
Drizzle 1 batch sugar-free caramel sauce as evenly as possible over all toppings. Don't worry about perfect coverage.
Increase oven temperature to 350°F. Bake for 18-20 minutes until edges bubble and turn golden brown. Center should look set but slightly jiggly.
Cool completely in pan before cutting into 16 bars. Use sharp knife dipped in hot water for clean cuts.