Melt 3 tablespoons of butter in a large pot over low heat.

Add 4 cups of mini marshmallows, stir until melted and smooth.

Stir in 1 teaspoon of ground cinnamon, then fold in 2 cups of chopped apples and finally add 5 cups of Rice Krispies.

Transfer the mixture to a greased 9x13-inch baking dish, press down firmly and evenly.

Cool at room temperature for 10 minutes, then cut into squares.

Optionally drizzle with caramel sauce once cooled.