Arrange oven rack in the top portion of the oven. Preheat oven on the high broiler setting.
In a food processor, blend graham crackers into a fine powder.
Combine graham cracker crumbs, almond flour, protein powder, cold cashew butter, maple syrup, vanilla and sea salt together in a mixing bowl. Mix until well combined. Fold in chocolate chips. Dough should be slightly sticky but hold its shape when rolled into a ball. If it's too soft, sprinkle in more almond flour. If it is too dry, add more maple syrup.
Add cookie dough to a parchment lined baking dish. Press dough down into an even layer.
Break up graham cracker and chocolate bar into smaller pieces. Cover cookie dough with marshmallows, chocolate bar pieces and graham cracker pieces. Gently press down chocolate and graham crackers into the dough to secure.
Place bars under broiler and broil for 1 to 1 1/2 minutes. Watch carefully! Remove bars from oven once marshmallows have reached desired toastiness.
Cut bars while they are still warm. Store in an air tight container in the refrigerator. Eat at room temperature.